Molcan Corporation (Page 12) @ ChemBuyersGuide.com, Inc.

4-Hydroxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d] pyrimidin-5-yl)benzene-1-sulfonyl chloride
CAS:139756-27-7
Sildenafil Chlorosulfone O-Desethyl Impurity
SDF40

4-Hydroxy-3-(2-hydroxy-3-oxo-1-phenylbutyl)-2H-chromen-2-one
CAS:83219-99-2
Warfarin RC23
WFR83

4-HYDROXY-3-(HYDROXYMETHYL)BENZALDEHYDE
CAS:54030-32-9
Salbutamol Benzaldehyde Impurity
SAB59

4-Hydroxy-3-[1-(4-nitrophenyl)-3-oxobutyl]-2H-1-benzopyran-2-one
CAS:152-72-7
Acenocoumarol
ARX00

4-HYDROXY-3-[3-[(1-METHYLETHYL)AMINO]-1-PHENYLPROPYL]-BENZOIC ACID
CAS:214601-13-5
Tolterodine Monoisopropyl 5-Carboxylic Acid Racema
TTR41B

4-Hydroxy-3-[4-hydroxy-3-(3-methylbut-2-enyl)benzamido]-8-methylcoumarin-7-yl 3-O-carbamoyl-5,5-di-C-methyl-a-L-lyxofuranoside sodium salt
CAS:1476-53-5
Novobiocin sodium
NVB00N

4-HYDROXY-4-(6-METHOXYNAPHTHALEN-2-YL)BUTAN-2-ONE
CAS:98386-83-5
Nabumetone 4-Hydroxy Impurity
NBM54

4-Hydroxy-5H-imidazo[4,5-d][1,2,3]triazin-6(7H)-one
CAS:1403820-30-3
Hypoxanthine 2-Aza 8-Oxo Impuirty
HPX62

4-Hydroxy-7-(3-chloropropoxy)-6-methoxyquinoline-3-carbonitrile
CAS:214470-66-3
Bosutinib Impurity 30
BST90

4-Hydroxy-N,2-dimethyl-N-(pyridin-2-yl)-2H-thieno[2,3-e]1,2-thiazine-3-carboxamide 1,1-dioxide
Tenoxicam EP Impurity F N-Methyl Tenoxicam
TXC06

4-HYDROXY-N,N,2-TRIMETHYLBENZIMIDAZOLE-6-CARBOXAMIDE
CAS:2168520-25-8
Tegoprazan RC 3
TGP63

4-HYDROXY-N-(PYRIDIN-2-YL)-2H-1,2-BENZOTHIAZINE-3-CARBOXAMIDE 1,1-DIOXIDE
CAS:65897-46-3
Piroxicam EP Impurity B Piroxicam USP RC B N-Des
PXC02

4-Hydroxy-N-[4-(hydroxymethyl)-2-thiazolyl]-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide
CAS:1797124-56-1
Meloxicam Impurity 1
MLX51

4-Hydroxy-N-[5-(hydroxymethyl)-2-thiazolyl]-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide
CAS:130262-92-9
Meloxicam Impurity 2
MLX52

4-HYDROXYBENZALDEHYDE
CAS:123-08-0
Bisoprolol EP Impurity S
BSP19

4-HYDROXYBENZENE-1,3-DICARBOXYLIC ACID
CAS:636-46-4
Acetylsalicylic Acid EP Impurity B 4-Hydroxyisoph
ATS02

4-HYDROXYBENZOHYDRAZIDE
CAS:5351-23-5
Nifuroxazide EP Impurity A p-Hydroxybenzohydrazid
NRX01

4-HYDROXYBENZOIC ACID
CAS:99-96-7
Acetylsalicylic Acid EP Impurity A Butyl Parahydr
ATS01

4-HYDROXYBENZOIC ACID
CAS:99-96-7
Butyl Parahydroxybenzoate EP Impurity A Acetylsal
BPH01

4-HYDROXYBENZYL ALCOHOL
CAS:623-05-2
Bisoprolol Alcohol Impurity
BSP52

4-HYDROXYBUTANE-1-SULFONIC ACID
CAS:26978-64-3
Busulfan Hydroxybutyl Sulfonic Acid
BUF52A

4-Hydroxybutane-1-sulfonic acid sodium salt
CAS:31465-25-5
Busulfan Hydroxybutyl Sulfonate Sodium
BUF52N

4-HYDROXYBUTYL METHANESULFONATE
CAS:42729-95-3
Busulfan Hydroxybutyl Methanesulfonate Impurity
BUF51

4-HYDROXYCARBAZOLE
CAS:52602-39-8
Carvedilol 4-Hydroxycarbazole Impurity
CVD14

4-Hydroxyphenyl-a-D-glucopyranoside
CAS:84380-01-8
Arbutin alpha-Anomer
ABN51

4-Imino-9,16-dioxa-3-azatricyclo[15.2.2.25,8]tricosa-1(19),2,5,7,17,20,22-heptaen-2-amine
Hexamidine EP Impurity C
HXM03

4-IODOBUTYL 3,4-DIMETHOXYBENZOATE
CAS:69788-70-1
Mebeverine EP Impurity F
MBV06

4-ISOBUTOXYBENZYLAMINE ACETATE
CAS:955997-89-4
Pimavanserin RC 12 (Acetate)
PVN72A

4-ISOBUTYL-2,6-PIPERIDINEDIONE
CAS:916982-10-0
Pregabalin Piperidinedione Impurity
PRG37

4-ISOBUTYL-DIHYDRO-3H-PYRAN-2,6-DIONE
CAS:185815-59-2
Pregabalin Pyrandione Impurity
PRG39

4-ISOPROPOXYANILINE
CAS:7664-66-6
Tandutinib Impurity 4
TTX54

4-Isopropoxyisophthalonitrile
CAS:161718-81-6
Febuxostat Impurity 2
FBX72

4-ISOTHIOCYANATO-2-(TRIFLUOROMETHYL)BENZONITRILE
CAS:143782-23-4
Enzalutamide Impurity 2
EZL62

4-Mercapto-2-(2-(2-oxo-2-(2-oxo-tetrahydrothiophen-3-ylamino)ethylthio)acetamido)butanoic acid
Erdosteine Homocysteine (Acid)
ERD50A

4-Mercapto-2-(2-(2-oxo-2-(2-oxo-tetrahydrothiophen-3-ylamino)ethylthio)acetamido)butanoic acid sodium salt
Erdosteine Homocysteine (Sodium)
ERD50N

4-Methoxy-1H-benzo[d]imidazole-2-thiol
CAS:149367-83-9
Esomeprazole RC 3
EOM63B

4-METHOXY-2,3,5-TRIMETHYLPYRIDE-N-OXIDE
CAS:86604-80-0
Omeprazole RC 8
OMP68

4-METHOXY-2-(4-METHOXYPHENYL)BENZO[B]THIOPHENE
CAS:90433-54-8
Raloxifene RC 16
RLX76

4-Methoxy-2-methyl-N-(5-methyl-1,3-thiazol-2yl)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide
CAS:1391051-96-9
Meloxicam USP RC D Meloxicam O-Methyl Ether Melo
MLX24

4-METHOXY-3,5-DIMETHYLPICOLINALDEHYDE
CAS:110464-72-7
Omeprazole RC 2
OMP62

4-Methoxy-3-[[(pyridin-3-ylmethyl)amino]carbonyl]benzoic acid
Picotamide EP Impurity C
PCD03

4-Methoxy-5-methyl-2-(2-methyl-5-oxotetrahydrofuran-2-yl)-3,6-dihydrobenzo[2,1-b3,4-c']difuran-8(2H)-one
CAS:26693-54-9
Mycophenolic Ether Lactone Mycophenolic Lactone E
MCP36

4-METHOXY-5-NITRO-2-(PROPYLTHIO)PYRIMIDINE
Ticagrelor Impurity 5
TCG75

4-METHOXY-N,N'-BIS(PYRIDIN-3-YLMETHYL)BENZENE-1,3-DICARBOXAMIDE
CAS:32828-81-2
Picotamide
PCD00

4-METHOXYBENZALDEHYDE
CAS:123-11-5
Mepyramine EP Impurity B Anisaldehyde
MRM02

4-METHOXYBENZENAMINE
CAS:104-94-9
Apixaban Impurity 37
APX97

4-METHOXYBENZENE-1,3-DICARBOXYLIC ACID
CAS:2206-43-1
Picotamide EP Impurity A
PCD01

4-METHOXYPHENOL
CAS:150-76-5
Guaiacol EP Impurity G Mequinol 4-Hydroxyanisole
GCL07

4-Methoxyphenylacetone 1-(p-Methoxyphenyl)-2-propanone
CAS:122-84-9
Mebeverine EP Impurity A
MBV01

4-METHYL-1,2,3,6-TETRAHYDROPYRIDINE HYDROCHLORIDE
CAS:95019-16-2
Efinaconazole RC 4 (HCl)
EFC64H

4-METHYL-1-(3-METHYLPYRIDIN-2-YL)-2-PHENYLPIPERAZINE
CAS:191546-94-8
Mirtazapine EP Impurity E Mirtazapine MTME Impuri
MTZ05

4-Methyl-11-propyl-5,11-dihydro-6H-dipyrido[3,2-b2',3'-e][1,4]diazepin-6-one
CAS:287980-85-2
Nevirapine EP Impurity C Nevirapine USP RC C
NVR03

4-METHYL-2-OXO-2H-CHROMEN-7-YL ACETATE
CAS:5/9/2747
Hymecromone Acetate
HMC50

4-METHYL-2-PENTYLPHENOL
CAS:876473-73-3
Amylmetacresol EP Impurity A
ASL01

4-METHYL-2-PROPYL-6-BENZIMIDAZOLECARBOXYLIC ACID
CAS:152628-03-0
Telmisartan Benzimidazole Acid
TST31

4-Methyl-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)benzaldehyde
Nilotinib Formyl Impurity
NLT50

4-Methyl-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)benzamide
CAS:851137-91-2
Nilotinib Amide Impurity
NLT51

4-METHYL-3-(4-(PYRIDIN-3-YL)PYRIMIDIN-2-YLAMINO)BENZOIC ACID
CAS:641569-94-0
Nilotinib EP Impurity D Nilotinib Carboxylic Acid
NLT04

4-METHYL-3-(TRIFLUOROMETHYL)BENZOIC ACID
CAS:261952-01-6
Imatinib Impurity 8
IMT58

4-METHYL-3-[[(2RS)-2-(PROPYLAMINO)PROPANOYL]AMINO]THIOPHENE-2-CARBOXYLIC ACID
CAS:114176-52-2
Articaine EP Impurity B (Base) Articaine USP RC B
ACN02B

4-Methyl-3-[[(2RS)-2-(propylamino)propanoyl]amino]thiophene-2-carboxylic acid HCl
Articaine EP Impurity B (HCl) Articaine USP RC B
ACN02H

4-METHYL-3-NITROBENZOIC ACID
CAS:96-98-0
Nilotinib Nitro Impurity
NLT52

4-METHYL-3-PYRIDINECARBOXAMIDE
CAS:7250-52-4
Nicotinamide 4-Methyl Impurity
NCT54

4-Methyl-5,11-dihydro-6H-dipyrido[3,2-b2',3'-e][1,4]diazepin-6-one
CAS:287980-84-1
Nevirapine EP Impurity B Nevirapine USP RC B
NVR02

4-METHYL-5-(2-(1,1,1-TRIFLUORO-2-METHYLPROPAN-2-YL)PYRIDIN-4-YL)THIAZOL-2-AMINE
CAS:1357476-69-7
Alpelisib RC 2
APB62

4-METHYL-6-(1-METHYL-1H-1,3-BENZODIAZOL-2-YL)-2-PROPYL-1H-1,3-BENZODIAZOLE
CAS:152628-02-9
Telmisartan EP Impurity A (Anhydrous) Telmisartan
TST01A

4-Methyl-6-(1-methyl-1H-1,3-benzodiazol-2-yl)-2-propyl-1H-1,3-benzodiazole monohydrate
CAS:1282554-35-1
Telmisartan EP Impurity A (Monohydrate) Telmisart
TST01H

4-Methyl-6-(2-methylprop-1-enyl)-2H-pyran-2-one
CAS:4394-72-3
Acitretin RC 4
ATT64

4-METHYL-N,N-DIPROPYLBENZENESULFONAMIDE
CAS:723-42-2
Probenecid EP Impurity B
PBN02

4-Methyl-N-(3-(5-methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)benzamide
CAS:641571-15-5
Nilotinib EP Impurity H
NLT08

4-METHYL-N-(5-METHYLPYRIDIN-2-YL)BENZAMIDE
CAS:349122-64-1
Zolpidem USP RC C Zolpyridine
ZPD23

4-Methyl-N-[3-(4-methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl]-3-[[4-(3-pyridinyl)-2-pyrimidinyl]amino]-benzamide
CAS:641571-10-0
Nilotinib (Base)
NLT00B

4-Methyl-N-[3-(4-methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl]-3-[[4-(3-pyridinyl)-2-pyrimidinyl]amino]-benzamide HCl
CAS:923288-95-3 (anhydrous) 923289-71-8 (dihydrate)
Nilotinib (HCl)
NLT00H

4-METHYL-N-[3-(4-METHYL-1H-IMIDAZOL-1-YL)-5-(TRIFLUOROMETHYL)PHENYL]-3-[[4-(3-PYRIDINYL-N-OXIDE)-2-PYRIMIDINYL]AMINO]BENZAMIDE
CAS:1246817-85-5
Nilotinib N-Oxide
NLT48

4-Methyl-N-propyl-3-[[(2RS)-2-(propylamino)propanoyl]amino]thiophene-2-carboxamide HCl
Articaine EP Impurity F Articaine Acid Propionami
ACN06H

4-METHYLBENZAMIDE
CAS:619-55-6
Cladribine EP Impurity F
CDB06

4-METHYLBENZENESULFONAMIDE
CAS:70-55-3
Gliclazide EP Impurity A Gliclazide BP Impurity A
GCZ01

4-METHYLBENZENESULFONIC ACID
CAS:104-15-4
Lisinopril EP Impurity B (Anhydrous) Escitalopram
LSN02A

4-METHYLBENZENESULFONIC ACID
CAS:104-15-4
Escitalopram EP Impurity J (Anhydrous) Anastrozol
ECT10A

4-METHYLBENZENESULFONIC ACID
CAS:104-15-4
Tizanidine EP Impurity I (Anhydrous) Lisinopril E
TZN09A

4-METHYLBENZENESULFONIC ACID
CAS:104-15-4
Anastrozole EP Impurity F (Anhydrous) Escitalopra
ANS06A

4-METHYLBENZENESULFONIC ACID
CAS:104-15-4
Sultamicillin EP Impurity B (Anhydrous) Tizanidin
STM02A

4-METHYLBENZENESULFONIC ACID MONOHYDRATE
CAS:6192-52-5
Sultamicillin EP Impurity B (Monohydrate) Tizanid
STM02H

4-METHYLBENZENESULFONIC ACID MONOHYDRATE
CAS:6192-52-5
Escitalopram EP Impurity J (Monohydrate) Anastroz
ECT10H

4-METHYLBENZENESULFONIC ACID MONOHYDRATE
CAS:6192-52-5
Anastrozole EP Impurity F (Monohydrate) Escitalop
ANS06H

4-METHYLBENZENESULFONIC ACID MONOHYDRATE
CAS:6192-52-5
Lisinopril EP Impurity B (Monohydrate) Escitalopr
LSN02H

4-METHYLBENZENESULFONIC ACID MONOHYDRATE
CAS:6192-52-5
Tizanidine EP Impurity I (Monohydrate) Lisinopril
TZN09H

4-METHYLENEPIPERIDINE
CAS:148133-82-8
Efinaconazole 4-Methylpiperidine Impurity (Base)
EFC40B

4-METHYLENEPIPERIDINE HYDROCHLORIDE
CAS:144230-50-2
Efinaconazole 4-Methylpiperidine Impurity (HCl)
EFC40H

4-Methylestra-1,3,5(10)-triene-3,17�-diol
CAS:6171-48-8
Estradiol EP Impurity C 4-Methyl Estradiol
ETL03

4-METHYLPENT-3-EN-2-ONE
CAS:141-79-7
Teicoplanin EP Impurity A Mesityl Oxide Cilastat
TCP01

4-METHYLPENT-3-EN-2-ONE
CAS:141-79-7
Cilastatin EP Impurity D Mesityl Oxide Teicoplan
CSS04

4-METHYLPENTANAL
CAS:1119-16-0
Pregabalin Impurity 27
PRG87

4-METHYLPHENOL
CAS:106-44-5
Amylmetacresol EP Impurity D Metacresol EP Impuri
ASL04

4-METHYLPHENOL
CAS:106-44-5
Metacresol EP Impurity C Amylmetacresol EP Impuri
MCS03

4-METHYLPHENYL PENTANOATE
CAS:10415-86-8
Amylmetacresol EP Impurity J
ASL10

4-METHYLPYRIDIN-2-AMINE
CAS:695-34-1
Rifaximin EP Impurity A
RFX01

4-NITRO-2-PHENOXYANILINE
CAS:5422-92-4
Nimesulide EP Impurity D
NMS04

4-NITRO-2-PHENOXYPHENOL
CAS:70995-08-3
Nimesulide EP Impurity G
NMS07

4-NITRO-3-(TRIFLUOROMETHYL)ANILINE
CAS:393-11-3
Nilutamide EP Impuirty B Flutamide EP Impurity A
NLD02

4-NITRO-3-(TRIFLUOROMETHYL)ANILINE
CAS:393-11-3
Flutamide EP Impurity A Flutamide USP RC A Nilut
FTM01

4-NITROBENZALDEHYDE
CAS:555-16-8
Chloramphenicol EP Impurity B
CRP02

4-NITROBENZENAMINE
CAS:100-01-6
Albendazole Impurity 9
ABD79

4-NITROBENZENEETHANAMINE
CAS:24954-67-4
Mirabegron 4-NBEA Impurity (Base)
MRB54B

4-Nitrobenzeneethanamine hydrochloride
CAS:29968-78-3
Mirabegron 4-NBEA Impurity (HCl)
MRB54H

4-NITROBENZOIC ACID
CAS:62-23-7
Benzocaine EP Impurity E
BZC05

4-Nitroimidazole 4-Nitro-1H-imidazole 4(5)-Nitroimidazole
CAS:3034-38-6
Metronidazole EP Impurity B
MND02

4-NITROISOPHTHALONITRILE
CAS:52054-41-8
Febuxostat Impurity 1
FBX71

4-NITROPHENOL
CAS:100-02-7
Paracetamol EP Impurity F Acetaminophen USP RC F
PCM06

4-Nitroso-(2-hydroxyethyl)piperazine
CAS:48121-20-6
Quetiapine HEP N-Nitroso Impurity (Base)
QTP63B

4-NITROSO-N-(PYRIDIN-2-YL)BENZENESULFONAMIDE
CAS:1202816-93-0
Sulfasalazine RC 7
SSZ57

4-NITROSOMORPHOLINE
CAS:59-89-2
Molsidomine EP Impurity B Nitrosomorpholine
MSD02

4-O-(2-Amino-2-deoxy-a-D-glucopyranosyl)-2-deoxy-5-O-[3-O-(2,6-diamino-2,6-dideoxy-a-D-glucopyranosyl)-�-D-ribofuranosyl]-D-streptamine
CAS:51795-47-2
Framycetin EP Impurity F Neomycin F Paromomycin
FRM06B

4-O-(2-Amino-2-deoxy-a-D-glucopyranosyl)-2-deoxy-5-O-[3-O-(2,6-diamino-2,6-dideoxy-�-L-idopyranosyl)-�-D-ribofuranosyl]-D-streptamine
CAS:7542-37-2
Framycetin EP Impurity E (Base) Neomycin E Parom
FRM05B

4-O-(2-Amino-2-deoxy-a-D-glucopyranosyl)-2-deoxy-5-O-[3-O-(2,6-diamino-2,6-dideoxy-�-L-idopyranosyl)-�-D-ribofuranosyl]-D-streptamine sulfate
CAS:1263-89-4
Framycetin EP Impurity E (Sulfate) Neomycin E Sul
FRM05S

4-O-(2-Amino-2-deoxy-a-D-glucopyranosyl)-2-deoxy-D-streptamine
CAS:534-47-4
Framycetin EP Impurity D Neomycin D Paromamine
FRM04B

4-O-(2-Amino-2-deoxy-a-D-glucopyranosyl)-2-deoxy-D-streptamine trihydrochloride
CAS:18685-97-7
Framycetin EP Impurity D (3HCl) Neomycin D (3HCl)
FRM04H

4-O-(3-Amino-3-deoxy-a-D-glucopyranosyl)-6-O-(6-amino-6-deoxy-a-D-glucopyranosyl)-1,3-N-bis[(2S)-4-amino-2-hydroxybutanoyl]-2-deoxy-L-streptamine
CAS:927821-99-6
Amikacin EP Impurity B 1,3-Di-HABA Kanamycin A
AMK02B

4-O-(3-Amino-3-deoxy-a-D-glucopyranosyl)-6-O-(6-amino-6-deoxy-a-D-glucopyranosyl)-1-N-[(2S)-4-amino-2-hydroxybutanoyl]-2-deoxy-L-streptamine
CAS:50725-24-1
Amikacin EP Impurity A (Base) 3-HABA Kanamycin A
AMK01B

4-O-(3-Amino-3-deoxy-a-D-glucopyranosyl)-6-O-(6-amino-6-deoxy-a-D-glucopyranosyl)-1-N-[(2S)-4-amino-2-hydroxybutanoyl]-2-deoxy-L-streptamine sulfate salt
Amikacin EP Impurity A (Sulfate) 3-HABA Kanamycin
AMK01S

4-O-(3-Amino-3-deoxy-a-D-glucopyranosyl)-6-O-[6-[[(2S)-4-amino-2-hydroxybutanoyl]amino]-6-deoxy-a-D-glucopyranosyl]-2-deoxy-L-streptamine
CAS:50866-72-3
Amikacin EP Impurity E (Base) BB-K6
AMK05B

4-O-(3-Amino-3-deoxy-a-D-glucopyranosyl)-6-O-[6-[[(2S)-4-amino-2-hydroxybutanoyl]amino]-6-deoxy-a-D-glucopyranosyl]-2-deoxy-L-streptamine sulfate
Amikacin EP Impurity E (Sulfate) BB-K6 Sulfate
AMK05S

4-O-(6-Amino-6-deoxy-a-D-glucopyranosyl)-6-O-[3-[[(2S)-4-amino-2-hydroxybutanoyl]amino]-3-deoxy-a-D-glucopyranosyl]-2-deoxy-D-streptamine
CAS:50725-25-2
Amikacin EP Impurity C (Base) 3"-HABA Kanamycin A
AMK03B

4-O-(6-Amino-6-deoxy-a-D-glucopyranosyl)-6-O-[3-[[(2S)-4-amino-2-hydroxybutanoyl]amino]-3-deoxy-a-D-glucopyranosyl]-2-deoxy-D-streptamine sulfate
Amikacin EP Impurity C (Sulfate) 3"-HABA Kanamyci
AMK03S

4-O-(Carboxymethyl)-1-deoxy-1,4-dihydro-4-hydroxy-1-oxo-rifamycin ?-lactone
CAS:14487-05-9
Rifaximin EP Impurity F Rifamycin O Rifamycin EP
RFX06

4-O-[2-Amino-2,3,4,6,-tetradeoxy-6-(ethylamino)-a-D-glycero-hex-4-enopyranosyl]-2-deoxy-6-O-[3-deoxy-4-C-methyl-3-(methylamino)-�-L-arabinopyranosyl]-1-N-ethyl-D-streptamine
Netilmicin EP Impurity D 6`-N-Ethylnetilmicin
NTM04B

4-O-[6-Amino-2,3,4,6-tetradeoxy-2-(ethylamino)-a-D-glycero-hex-4-enopyranosyl]-2-deoxy-6-O-[3-deoxy-4-C-methyl-3-(methylamino)-�-L-arabinopyranosyl]-1-N-ethyl-D-streptamine
CAS:63721-52-8
Netilmicin EP Impurity C 2`-N-Ethylnetilmicin
NTM03B

4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine
CAS:823817-56-7
Sitagliptin Racemate (Base)
SGT40B

4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine acetate
CAS:2137530-88-0
Sitagliptin Racemate (Acetate)
SGT40A

4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine phosphate
CAS:823817-57-8
Sitagliptin Racemate (Phosphate)
SGT40P

4-OXO-4-PHENYLBUTANOIC ACID
CAS:2051-95-8
Phenylbutyrate EP Impurity A Phenylbutyrate USP R
PBR01

4-Oxo-8-(4-(4-phenylbutoxy)benzamido)-4H-chromene-2-carboxamide
CAS:136450-10-7
Pranlukast Chromene Carboxamide Impurity
PRL60

4-Oxo-8-(4-(4-phenylbutoxy)benzamido)-4H-chromene-2-carboxylic acid
CAS:211116-98-2
Pranlukast Chromene Carboxylic Acid Impurity
PRL61

4-Phenoxy-3-(1H-pyrrol-1-yl)-5-sulfamoylbenzoic acid
CAS:67641-46-7
Piretanide EP Impurity A
PRT01

4-PHENYL-3,4-DIHYDRO-2H-BENZO[H]CHROMENE
CAS:94305-25-6
Dapoxetine RC 8
DXE68

4-PHENYL-3,4-DIHYDRONAPHTHALEN-1(2H)-ONE
CAS:14578-68-8
Sertraline RC 17
STL77

4-PHENYLBUTANOIC ACID
CAS:1821-12-1
Phenylbutyrate (Acid)
PBR00A

4-Phenylbutyl phosphonic acid
CAS:46348-61-2
Fosinopril USP RC H
FSN28

4-PHENYLSULFONYLANILINE
CAS:1/4/7019
Dapsone Desamino Impurity (Base) Dapsone Impurity
DPS52B

4-Piperidyl diphenyl propoxyacetate hydrochloride
CAS:108640-64-8
Propiverine N-Desmethyl HCl
PPV56H

4-PYRIDINECARBOXAMIDE 1-OXIDE
CAS:38557-82-3
Isonicotinamide RC 32
INM92

4-PYRIDINECARBOXYLIC ACID HYDRAZIDE
CAS:54-85-3
Isoniazid Isonicotinic Acid Hydrazide
ISN00

4-tert-Butyl-N-(6-(2-hydroxyethoxy)-5-(2-methoxyphenoxy)-2-(pyrimidin-2-yl) pyrimidin-4-yl)benzenesulfinamide
Bosentan Sulfoxide
BSN42

4-TERT-BUTYLACETOPHENONE
CAS:943-27-1
Ebastine EP Impurity B
EBN02

4-TERT-BUTYLAMINOETHYL-2-METHYLPHENOL
CAS:132183-64-3
Salbutamol EP Impurity H Salbutamol Dideshydroxy
SAB08B

4-TERT-BUTYLANISOLE
CAS:5396-38-3
Maropitant TBA Impurity
MPN54

4-TRIFLUOROMETHOXYANILINE
CAS:461-82-5
Riluzole USP RC A
RLZ21

4-VINYL-2,3-DIHYDROBENZOFURAN
CAS:230642-84-9
Tasimelteon RC 6
TLT66

4`-(Trifluoromethyl)valerophenone-(E)-O-2-(2-aminoethyl)oxime maleate
Fluvoxamine Impurity 1
FVX61M

4`-[(5-Chloro-1,4`-dimethyl-2`-propyl[2,6`-bi-1H-benzimidazol]-1`-yl)methyl]-[1,1`-Biphenyl]-2-carboxylic acid
CAS:885045-90-9
Telmisartan Chloro Impurity
TST52

4�-[2-[1-[(2�-Tetrazoylbiphen-4-yl)methyl]-4-oxo-1,3-diazaspiro[4,4]non-2-en-2-yl]pentyl]biphenyl-2-tetrazole
CAS:1346598-52-4
Irbesartan Dimer
IST50

42-O-t-Butyldimethylsilyloxyethyl Rapamycin
CAS:159351-68-5
Everolimus t-Butyldimethylsilyl Ether
EVR64

45-[[2-O-(3-Amino-2,3,6-trideoxy-3-C-methyl-a-L-arabinohexopyranosyl)-�-D-glucopyranosyl]oxy]-11,20-dichloro-1,2,3,4,5,6,7,8,24,25,26,27,37,38,39,39a-hexadecahydro-8,23,29,31,33-pentahydroxy-7-[[4-methyl-2-(methylamino)-1-oxopentyl]amino]-2,6,25,39,40-pen
Vancomycin EP Impurity E [L-�-Asp3] Vancomycin B
VCM05

4A-HYDROXY IVERMECTIN
CAS:86629-74-5
Ivermectin 4a-Hydroxy
IVM54

4a-methyl-5a-cholest-7-en-3�-ol
CAS:481-25-4
Cholesterol 4alpha-Methyl 7-En Analog Methostenol
CRX63

4H-IMIDAZO[4,5-D][1,2,3]TRIAZIN-4-ONE
CAS:63907-29-9
Temozolomide RC 1
TMZ61

5'-Deoxy-5-fluoro-N4-(2-methylbutyloxycarbonyl)cytidine
CAS:910129-15-6
Capecitabine EP Impurity D Capecitabine 2-Methylb
CPC04

5'-Deoxy-5-fluoro-N4-(3-methylbutyloxycarbonyl)cytidine
CAS:162204-30-0
Capecitabine EP Impurity E Capecitabine 3-Methylb
CPC05

5'-DEOXY-5-FLUOROCYTIDINE
CAS:66335-38-4
Doxifluridine 5-Fluorocytosine Impurity Capecitab
DFL50

5'-DEOXY-5-FLUOROCYTIDINE
CAS:66335-38-4
Capecitabine EP Impurity A Capecitabine USP RC A
CPC01

5'-DEOXY-5-FLUOROURIDINE
CAS:9/5/3094
Capecitabine EP Impurity B Capecitabine USP RC B
CPC02

5'-O-[[(2S,5R)-5-(5-Methyl-2,4-dioxo-3,4-dihydropyrimidine-1(2H)-yl)-2,5-dihydrofuran-2-yl]methyl]-3'-epithymidine
Stavudine EP Impurity G Stavudine BP Impurity G
STV07

5,?7-?Bis(acetyloxy)?-?2-?[4-?(acetyloxy)?phenyl]?-4H-?1-?benzopyran-?4-?one
CAS:3316-46-9
Apigenin Triacetate
APG59

5,10-Dibenzyl-4,11-dioxo-7,8-dithia-3,12-diazatetradecanedioic acid
CAS:123658-06-0
Racecadotril EP Impurity D Thiorphan Disulfide
RCT04

5,11-DIHYDRO-10H-DIBENZO[B,F]AZEPIN-10-ONE
CAS:21737-58-6
Oxcarbazepine EP Impurity C Oxcarbazepine USP RC
OXC03

5,11-DIHYDRO-6H-PYRIDO[2,3-B][1,4]BENZODIAZEPIN-6-ONE
CAS:885-70-1
Pirenzepine EP Impurity B
PZN02

5,17,19,21-Tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-2,7-(epoxypentadeca[1,11,13] trienimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone 21-acetate
CAS:13553-79-2
Rifaximin EP Impurity E Rifamycin S Rifamycin EP
RFX05

5,5',5''-(Eethane-1,1,2-triyl)tris(6-chloroindolin-2-one)
Ziprasidone RC 3
ZPS63

5,5'-(Methylimino)bis[2-(3,4-dimethoxyphenyl)-2-(1-methylethyl)pentanenitrile]
CAS:2086274-75-9
Verapamil EP Impurity N (Base)
VRP14B

5,5'-(Methylimino)bis[2-(3,4-dimethoxyphenyl)-2-(1-methylethyl)pentanenitrile] HCl
Verapamil EP Impurity N (HCl)
VRP14H

5,5'-[(2-Hydroxypropane-1,3-diyl)bis(acetylimino)]bis[N,N'-bis(2,3-dihydroxypropyl)2,4,6-triiodobenzene-1,3-dicarboxamide]
CAS:92339-11-2
Iodixanol
IDX00

5,5'-[(2rs)-2-Hydroxypropane-1,3-diylbis(oxy)]bis(cis-1,2,3,4-tetrahydronaphthalene-2,3-diol (3 Diastereoisomers)
Nadolol EP Impurity C
NDL03

5,5'-[[(1,1-Dimethylethyl)imino]bis[(2-hydroxypropane1,3-diyl)oxy]]bis(cis-1,2,3,4-tetrahydronaphthalene-2,3-diol) (10 Stereoisomers)
CAS:67247-26-1
Nadolol EP Impurity D
NDL04

5,5'-[[2-(3,4-Dimethoxyphenyl)ethyl]imino]bis[2-(3,4-dimethoxyphenyl)-2-(1-methylethyl)pentanenitrile]
CAS:141991-89-1
Verapamil EP Impurity M (Base) Verapamil USP RC D
VRP13B

5,5'-[[2-(3,4-Dimethoxyphenyl)ethyl]imino]bis[2-(3,4-dimethoxyphenyl)-2-(1-methylethyl)pentanenitrile] hydrochloride
CAS:190850-50-1
Verapamil EP Impurity M (HCl) Verapamil USP RC D
VRP13H

5,5'-bis[2-[4-(1,2-Benzisothiazol-3-yl)piperazin-1-yl]ethyl]-6,6'-dichloro-3-hydroxy-1,1',3,3'-tetrahydro-2H,2'H-3,3'-biindole-2,2'-dione
CAS:1303996-68-0
Ziprasidone EP Impurity D Ziprasidone Dimer Zipr
ZPS04B

5,5'-Methylenebis(6-chloroindolin-2-one)
Ziprasidone RC 4
ZPS64

5,5'-Piperazine-2,5-diylbis(2-hydroxybenzamide)
Labetalol EP Impurity E Labetalol Piperadine Dime
LBT05B

5,5-Diamino-4-(4-hydroxy-3-(hydroxymethyl)butylamino)oxazol-2(5H)-one
Penciclovir Impurity 3
PCV53

5,5-Diamino-4-{[(2-hydroxyethoxy) methyl]amino}-1,3-oxazol-2(5H)-one
Aciclovir Impurity 4
ACV64

5,5-Dimethyl-3-[4-nitro-3-(trifluoromethyl)phenyl]-imidazolidine-2,4-dione
CAS:63612-50-0
Nilutamide
NLD00

5,5-Dimethyl-3-[4-nitro-3-(trifluoromethyl)phenyl]-oxazolidine-2,4-dione
CAS:65274-43-3
Nilutamide EP Impuirty C
NLD03

5,5-DIMETHYLIMIDAZOLIDINE-2,4-DIONE
CAS:77-71-4
Hydantoin 5,5-Dimethyl
HDT63

5,5-Dioxidodibenzo[b,f][1,4]thiazepin-11-one
Quetiapine DBTO Sulfone
QTP46

5,5-DIPHENYL-2-THIOXOIMIDAZOLIDIN-4-ONE
CAS:21083-47-6
Hydantoin 5,5-Diphenyl 2-Thio
HDT65

5,5-DIPHENYLIMIDAZOLIDINE-2,4-DIONE
CAS:57-41-0
Phenytoin 5,5-Diphenyl Hydantoin
PNT00

5,5-DIPHENYLIMIDAZOLIDINE-2,4-DIONE
CAS:57-41-0
Hydantoin 5,5-Diphenyl Phenytoin
HDT64

5,5`-[1,1`-Biphenyl]-4,4`-diylbis[2-(2S)-2-pyrrolidinyl-1H-imidazole]
CAS:1007882-27-0
Daclatasvir Impurity 1 (Base)
DCL51B

5,5`-[1,1`-Biphenyl]-4,4`-diylbis[2-(2S)-2-pyrrolidinyl-1H-imidazole] tetrahydrochloride
CAS:1009119-83-8
Daclatasvir Impurity 1 (HCl)
DCL51H

5,5�-[[(5,6-Diethyl-2,3-dihydro-1H-inden-2-yl)imino]bis(1-hydroxy-2,1-ethanediyl)]bis[8-(phenylmethoxy)-2(1H)-quinolinone]
CAS:1207760-24-4
Indacaterol Impurity B
IDC52

5,6,21,23,25-Pentahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a] benzimidazole-1,15(2H)-dione
CAS:80621-88-1
Rifaximin Desacetyl Impurity
RFX62

5,6,7,7A-TETRAHYDROTHIENO[3,2-C]PYRIDIN-2(4H)-ONE
CAS:109904-37-2
Prasugrel Impurity 5 (Base)
PRS75B

5,6,7,7A-TETRAHYDROTHIENO[3,2-C]PYRIDIN-2(4H)-ONE 4-METHYLBENZENESULFONATE
CAS:952340-39-5
Prasugrel Impurity 5 (Tosylate)
PRS75T

5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one HCl
CAS:115473-15-9
Prasugrel Impurity 5 (HCl)
PRS75H

5,6,7,8-Tetrahydro-6-[propyl[2-(2-thienyl)ethyl]amino]-1-naphthalenol
CAS:92206-54-7
Rotigotine Racemate (Base)
RTG50B

5,6,7,8-Tetrahydro-6-[propyl[2-(2-thienyl)ethyl]amino]-1-naphthalenol HCl
CAS:102120-99-0
Rotigotine Racemate HCl
RTG50H

5,6,9,17,19,21-Hexahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,11(2H)-dione 21-acetate
CAS:6998-60-3
Rifaximin EP Impurity C (Free Phenol) Rifamycin S
RFX03A

5,6,9,17,19,21-Hexahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,11(2H)-dione 21-acetate sodium salt
CAS:14897-39-3
Rifaximin EP Impurity C (Sodium) Rifamycin SV Sod
RFX03N

5,6-DICHLORO-3,4-DIHYDROQUINAZOLIN-2-AMINE
CAS:444904-63-6
Anagrelide RC 3 (Base)
ANL63B

5,6-DICHLORO-3,4-DIHYDROQUINAZOLIN-2-AMINE HYDROBROMIDE
CAS:327602-34-6
Anagrelide RC 3 (HBr)
ANL63H

5,6-DIETHYL-2,3-DIHYDRO-1H-INDEN-2-AMINE
CAS:312753-70-1
Indacaterol RC 3 (Base)
IDC63B

5,6-DIETHYL-2,3-DIHYDRO-1H-INDEN-2-AMINE HYDROCHLORIDE
CAS:312753-53-0
Indacaterol RC 3 (HCl)
IDC63H

5,6-DIHYDRO-3-(METHYLAMINO)-2H-1,4-THIAZIN-2-ONE O-[[5-[(DIMETHYLAMINO)METHYL]-2-FURANYL]METHYL]OXIME
CAS:112233-24-6
Ranitidine RC 3
RNT63

5,6-Dihydro-9,10-dimethoxybenzo[g]-1,3-benzodioxolo[5,6-a]quinolizinium
CAS:2086-83-1
Berberine (Base)
BBR00B

5,6-DIHYDRO-9,10-DIMETHOXYBENZO[G]-1,3-BENZODIOXOLO[5,6-A]QUINOLIZINIUM CHLORIDE
CAS:633-65-8
Berberine HCl Berberine Hydrochloride
BBR00H

5,6-Dihydro-9,10-dimethoxybenzo[g]-1,3-benzodioxolo[5,6-a]quinolizinium sulfate
CAS:633-66-9
Berberine Sulfate
BBR00S

5,6-Dihydro-a-methyl-N-[3-[3- (trifluoromethyl)phenyl]propyl]-1-naphthalene methanamine
CAS:802918-47-4
Cinacalcet 5,6-Dihydro Racemate Base
CCC56B

5,6-Dihydro-a-methyl-N-[3-[3- (trifluoromethyl)phenyl]propyl]-1-naphthalene methanamine hydrochloride
Cinacalcet 5,6-Dihydro Racemate HCl
CCC56H

5,6-DIMETHOXY-1-INDANONE
CAS:2107-69-9
Donepezil EP Impurity B Donepezil Indanone Impuri
DNP02

5,6-Dimethoxy-2-((1-nitrosopiperidin-4-yl)methyl)-2,3-dihydroinden-1-one
Donepezil N-Nitroso Analog
DNP49

5,6-Dimethoxy-2-(1-oxido-pyridin-4-ylmethyl)indan-1-one
CAS:896134-07-9
Donepezil Pyridine N-Oxide
DNP47

5,6-Dimethoxy-2-(piperidin-4-ylmethyl) indan-1-one
CAS:120014-30-4
Donepezil EP Impurity A (Base) Desbenzyl Donepezi
DNP01B

5,6-Dimethoxy-2-(piperidin-4-ylmethyl) indan-1-one hydrochloride
CAS:120013-39-0
Donepezil EP Impurity A (HCl) Desbenzyl Donepezil
DNP01H

5,6-DIMETHOXY-2-(PYRIDIN-4-YLMETHYL)INDAN-1-ONE
CAS:4803-57-0
Donepezil EP Impurity D Donepezil Pyridine Analog
DNP04

5,6-Dimethoxy-2-(pyridin-4-ylmethylene)indan-1-one
CAS:4803-74-1
Donepezil Pyridine Dehydro Impurity
DNP38

5,6-Dimethoxy-3-methyl-2-[(all-E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18,22,26,30,34-nonaenyl]benzene-1,4-dione
CAS:303-97-9
Ubidecarenone EP Impurity D Ubidecarenone USP RC
UBD04

5,6-Dimethoxy-3-methyl-2-[(all-E)-3,7,11,15,19,23,27,31-octamethyldotriaconta- 2,6,10,14,18,22,26,30-octaenyl]benzene-1,4-dione
CAS:2394-68-5
Ubidecarenone EP Impurity C Ubiquinone-8
UBD03

5,6-DIPHENYLPYRAZIN-2(1H)-ONE
CAS:18591-57-6
Selexipag RC 1 Selexipag Pyrazinone Impurity Sel
SLX51

5,6-Epoxy Abiraterone
Abiraterone 5,6-Epoxide Impurity
ABR52

5,6-Epoxy Abiraterone Acetate
CAS:1868064-50-9
Abiraterone Acetate 5,6-Epoxide
ABR76

5,6-Epoxy Abiraterone N-Oxide
Abiraterone 5,6-Epoxide N-Oxide
ABR72

5,7-Cichloro-2-(5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid hydrochloride
Lifitegrast RC 16
LGS76H

5,7-DIACETAMIDO-1,3-DIMETHYLADAMANTANE
CAS:14931-70-5
Memantine Impurity 2
MMT62

5,7-Dichloro-2-(5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
Lifitegrast RC 8
LGS68A

5,7-DICHLOROQUINOLIN-8-OL
CAS:773-76-2
Clioquinol EP Impurity B Chloroxine
CQN02

5,7-DIFLUOROCHROMAN-4-ONE
CAS:844648-22-2
Tegoprazan RC 1
TGP61

5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-4H-1-benzopyran-4-one
CAS:520-34-3
Diosmin EP Impurity F Diosmin BP Impurity F Dio
DSM06

5,7-Dihydroxy-2-(4-hydroxyphenyl)-2,3-dihydrochromen-4-one
CAS:67604-48-2
Naringenin Racemate
NGX60

5,7-DIHYDROXY-2-(4-HYDROXYPHENYL)-4H-CHROMEN-4-ONE
CAS:520-36-5
Apigenin
APG00

5,7-Dihydroxy-2-(4-hydroxyphenyl)-6-((2S,3S,4R,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)-tetrahydro-2H-pyran-2-yl)-4H-chromen-4-one
CAS:38953-85-4
Vitexin Isomer Isovitexin Apigenin 6-C-�-D-Gluco
VTX50

5,7-Dihydroxy-2-(4-hydroxyphenyl)-6-(3-methylbut-2-enyl)-2,3-dihydrochromen-4-one
CAS:68682-01-9
Naringenin 6-Prenyl Racemate
NGX53

5,7-Dihydroxy-2-(4-hydroxyphenyl)-8-((2S,3S,4R,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)-tetrahydro-2H-pyran-2-yl)-4H-chromen-4-one
CAS:3681-93-4
Vitexin
VTX00

5,7-DIHYDROXY-2-(4-HYDROXYPHENYL)-8-(3-METHYLBUT-2-ENYL)-2,3-DIHYDROCHROMEN-4-ONE
CAS:68682-02-0
Naringenin 8-Prenyl Racemate
NGX58

5,7-DIIODOQUINOLIN-8-OL
CAS:83-73-8
Clioquinol EP Impurity C Iodoquinol
CQN03

5,7-DIMETHYL-1,3-ADAMANTANEDIAMINE
CAS:19385-96-7
Memantine Impurity 1
MMT61

5-(((4-Amino-2-methylpyrimidin-5-yl)methoxy)methyl)-4-(hydroxymethyl)-2-methylpyridin-3-ol
Pyridoxine Amino Pyrimidine
PDX51

5-((2-Benzyl-3,4-dihydro-2H-chromen-6-yl)methyl)thiazolidine-2,4-dione
CAS:109229-58-5
Englitazone
EGT00

5-((2S,3S,4R)-3,4-Diamino-tetrahydrothiophen-2-yl)pentanoic acid
CAS:22342-46-7
Biotin RC 1 Diamino Biotin
BTN61

5-((3,5-DIMETHYLPHENOXY)METHYL)OXAZOLIDIN-2-ONE
CAS:1665-48-1
Metaxalone
MXL00

5-((4-(Benzyloxy)-3-methoxyphenethyl)(methyl)amino)-2-(3,4-dimethoxyphenyl)-2-isopropylpentanenitrile
CAS:114829-62-8
Verapamil p-O-Desmethyl p-O-Benzyl
VRP53

5-((4-Hydroxy-3-methoxyphenethyl)(methyl)amino)-2-(3,4-dimethoxyphenyl)-2-isopropylpentanenitrile
CAS:77326-93-3
Verapamil p-O-Desmethyl
VRP52

5-((5-CHLORO-1H-PYRROLO[2,3-B]PYRIDIN-3-YL)METHYL)-N-((6-(TRIFLUOROMETHYL)PYRIDIN-3-YL)METHYL)PYRIDIN-2-AMINE
CAS:1029044-16-3
Pexidartinib
PTB00

5-((R)-2-(5-Ethyl-2,3-dihydro-1H-inden-2-ylamino)-1-hydroxyethyl)-8-hydroxyquinolin-2(1H)-one
CAS:1026461-20-0
Indacaterol RC 1
IDC61B

5-((R)-2-(5-Ethyl-6-(1-hydroxyethyl)-2,3-dihydro-1H-inden-2-ylamino)-1-hydroxyethyl)-8-hydroxyquinolin-2(1H)-one
CAS:1446354-19-3
Indacaterol 1-Hydroxyethyl
IDC61

5-((R)-2-(Benzyl((R)-4-phenylbutan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)benzamide
CAS:75615-55-3
Labetalol RC1
LBT61B

5-((R)-2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-5,6,7,7a-tetrahydrothieno[3,2-c]pyridin-2(4H)-one
CAS:1283166-42-6
Prasugrel Thiolactone (R)-Isomer
PRS56

5-((S)-2-(Benzyl((R)-4-phenylbutan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)benzamide
CAS:81580-37-2
Labetalol RC2
LBT62B

5-([(2R,3R)-2-((S)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(4-fluoro phenyl)morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
CAS:1242175-34-3
Aprepitant (S,R,R)-Isomer
APP75

5-([(2R,3S)-2-((R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(3-fluoro phenyl)morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
Aprepitant meta-Fluoro Isomer
APP83

5-([(2R,3S)-2-((R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(4-fluoro phenyl)-4-oxido-morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
CAS:172673-23-3
Aprepitant N-Oxide
APP50

5-([(2R,3S)-2-((R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(4-fluoro phenyl)morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
CAS:170729-80-3
Fosaprepitant Impurity C Aprepitant
FSP53

5-([(2R,3S)-2-((R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(4-fluoro phenyl)morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
CAS:170729-80-3
Aprepitant (R,R,S)-Aprepitant Fosaprepitant Impu
APP00

5-([(2R,3S)-2-((R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-phenyl morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
CAS:170729-76-7
Aprepitant EP Impurity A Aprepitant USP RC C Apr
APP01

5-([(2R,3S)-2-((S)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(4-fluoro phenyl)morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
CAS:170902-81-5
Aprepitant (S,R,S)-Isomer
APP76

5-([(2S,3R)-2-((R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(4-fluoro phenyl)morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
CAS:1185502-97-9
Aprepitant (R,S,R)-Isomer
APP73

5-([(2S,3S)-2-((R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(4-fluoro phenyl)morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
CAS:172822-28-5
Aprepitant (R,S,S)-Isomer
APP74

5-([(2S,3S)-2-((S)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy)-3-(4-fluoro phenyl)morpholino]methyl)-1H-1,2,4-triazol-3(2H)-one
Aprepitant (S,S,S)-Isomer
APP78

5-([1,1'-Biphenyl]-4-ylmethyl)-3-methylpyrrolidin-2-one
CAS:1038925-22-2
Sacubitril Pyrrolidinone Impurity
SCT63

5-({4-[3-Carbamoyl-1-(4-methoxyphenyl)-7-oxo-1H,4H,5H,6H,7H-pyrazolo[3,4-c]pyridin-6-yl]phenyl}amino)pentanamide
CAS:2187409-01-2
Apixaban Open Chain Amide Apixaban impurity D BM
APX52

5-({4-[3-Carbamoyl-1-(4-methoxyphenyl)-7-oxo-1H,4H,5H,6H,7H-pyrazolo[3,4-c]pyridin-6-yl]phenyl}amino)pentanoic acid
CAS:2206825-87-6
Apixaban Open Chain Acid (Base) Apixaban Amino Ac
APX51B

5-({4-[3-Carbamoyl-1-(4-methoxyphenyl)-7-oxo-1H,4H,5H,6H,7H-pyrazolo[3,4-c]pyridin-6-yl]phenyl}amino)pentanoic acid hydrochloride
CAS:2241139-69-3
Apixaban Open Chain Acid (HCl) Apixaban Amino Aci
APX51H

5-(1,3-Dihydroxypropan-2-ylamino)-1-(hydroxymethyl)cyclohexane-1,2,3,4-tetraol
CAS:83480-29-9
Voglibose N-(1,3-Dihydroxy-2-propyl)valiolamine
VGL00

5-(1,4-Diazepan-1-ylsulfonyl)isoquinolin-8-ol
CAS:105628-72-6
Fasudil Hydroxy Impurity (Base)
FDL50B

5-(1,4-Diazepan-1-ylsulfonyl)isoquinolin-8-ol hydrochloride
CAS:155558-32-0
Fasudil Hydroxy Impurity (HCl)
FDL50H

5-(1,4-DIAZEPAN-1-YLSULFONYL)ISOQUINOLINE
CAS:103745-39-7
Fasudil (Base)
FDL00B

5-(1,4-Diazepan-1-ylsulfonyl)isoquinoline dihydrochloride
CAS:203911-27-7
Fasudil (2HCl) Fasudil Dihydrochloride
FDL00D

5-(1,4-DIAZEPAN-1-YLSULFONYL)ISOQUINOLINE HYDROCHLORIDE
CAS:105628-07-7
Fasudil (HCl) Fasudil Hydrochloride
FDL00H

5-(1-(2-Fluorophenyl)-2-oxopropyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl)acetate
CAS:1443034-67-0
Prasugrel Impurity 9 Prasugrel Acetyl Impurity
PRS79B

5-(1-(3-Chloro-2-methylphenyl)vinyl)-1H-imidazole
MPVI-Cl J1436
MPV36

5-(1-(3-Fluoro-2-methylphenyl)vinyl)-1H-imidazole
MPVI-F J1411
MPV11

5-(1-Bromo-2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate
Prasugrel 1-Bromo Impurity
PRS61

5-(1-HYDROXY-2-(ISOPROPYLAMINO)ETHYL)-2-METHOXYPHENOL
CAS:3413-49-8
Isoprenaline Impurity 4
IPL54

5-(1-METHYLPIPERIDIN-4-YL)-5H-DIBENZO[A,D][7]ANNULEN-5-OL
CAS:3967-32-6
Cyproheptadine EP Impurity C Cyproheptadine USP R
CHT03

5-(2,2-DIMETHYL-4H-BENZO[D][1,3]DIOXIN-6-YL)OXAZOLIDIN-2-ONE
CAS:452340-96-4
Vilanterol RC 3
VLT53

5-(2,3-Dichlorophenyl)-dihydrofuran-2(3H)-one
CAS:1391052-21-3
Sertraline RC 10
STL70

5-(2,4-DIMETHYLPHENOXY)-2,2-DIMETHYLPENTANOIC ACID
CAS:86837-66-3
Gemfibrozil 2,4-Dimethylphenoxy
GFZ56

5-(2,5-DIMETHYLPHENOXY)-2,2-DIMETHYLPENTANAMIDE
CAS:114413-97-7
Gemfibrozil EP Impurity B
GFZ02

5-(2,5-DIMETHYLPHENOXY)-2,2-DIMETHYLPENTANOIC ACID
CAS:25812-30-0
Gemfibrozil
GFZ00

5-(2-((2,3-Dimethyl-2H-indazol-6-yl)(methyl)amino)pyrimidin-4-ylamino)-2-methylbenzenesulfonamide HCl
CAS:2518115-74-5
Pazopanib Isomer (HCl)
PZP51H

5-(2-(2-(2-Ethoxyphenoxy)ethylamino)propyl)-1-(3-hydroxypropyl)indoline-7-carboxamide
CAS:239463-74-2
Silodosin Ethoxy Analog
SLD66

5-(2-(4-(BENZO[D]ISOTHIAZOL-3-YL)PIPERAZIN-1-YL)-1-HYDROXYETHYL)-6-CHLOROINDOLIN-2-ONE
CAS:884305-08-2
Ziprasidone Hydroxy Impurity
ZPS53

5-(2-(4-(Benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)-6-chloro-3-(propan-2-ylidene)indolin-2-one
CAS:684269-12-3
Ziprasidone RC 2
ZPS62

5-(2-(tert-Butylamino)-1-hydroxyethyl)-3-(hydroxymethyl)benzene-1,2-diol
CAS:182676-90-0
Salbutamol 1,2-Diol Impurity 5-Hydroxy Albuterol
SAB45B

5-(2-(tert-Butylamino)-1-hydroxyethyl)-3-(hydroxymethyl)benzene-1,2-diol hemisulfate salt
Salbutamol 1,2-Diol Impurity (Hemisulfate) 5-Hydr
SAB45S

5-(2-BROMOBUTANOYL)-8-HYDROXYQUINOLIN-2(1H)-ONE
CAS:59827-93-9
Procaterol RC 3
PRR63

5-(2-BROMOETHYL)BENZOFURAN
CAS:133034-06-7
Darifenacin 2,3-Dehydro Bromo Impurity
DRF40

5-(2-BROMOETHYL)IMIDAZOLIDINE-2,4-DIONE
CAS:7471-52-5
Hydantoin 5-Bromoethyl
HDT61

5-(2-CHLOROACETYL)-6-CHLORO-2-OXINDOLE
CAS:118307-04-3
Ziprasidone Dichloro Impurity
ZPS52

5-(2-CHLOROBENZYL)-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE
CAS:55142-85-3
Ticlodipine (Base)
TDP00B

5-(2-CHLOROBENZYL)-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE HYDROCHLORIDE
CAS:53885-35-1
Ticlodipine (HCl)
TDP00H

5-(2-CHLOROBENZYL)-6,7-DIHYDROTHIENO[3,2-C]PYRIDIN-4(5H)-ONE
CAS:68559-55-7
Ticlodipine EP Impurity L Ticlodipine USP RC B T
TDP12B

5-(2-Chlorobenzyl)thieno[3,2-c]pyridinium
CAS:721387-90-2
Ticlodipine EP Impurity E (Base)
TDP05B

5-(2-CHLOROBENZYL)THIENO[3,2-C]PYRIDINIUM CHLORIDE
CAS:53885-64-6
Ticlodipine EP Impurity E (Chloride)
TDP05C

5-(2-CHLOROPHENYL)-1H-TETRAZOLE
CAS:50907-46-5
Olmesartan CPT Impurity
OLM52

5-(2-Ethoxy-3,5-dinitrophenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:1797103-21-9
Sildenafil RC 20 Dinitrodenafil
SDFB0

5-(2-Ethoxy-5-(1-ethylpiperazine-4-carbonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:944241-52-5
Sildenafil RC 31
SDFC1

5-(2-Ethoxy-5-(1-methylpiperazine-4-carbonothioyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione
CAS:1333233-46-7
Sildenafil RC 25
SDFB5

5-(2-Ethoxy-5-(1-methylpiperazine-4-carbonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:147676-79-7
Sildenafil RC 8 Desmethyl Fondenafil
SDF58

5-(2-Ethoxy-5-(1-propylpiperazine-4-carbonothioyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione
CAS:2196244-90-1
Sildenafil RC 21 Dithiopropylcarbodenafil
SDFB1

5-(2-Ethoxy-5-(2-(4-(2-hydroxyethyl)piperazin-1-yl)acetyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:147676-56-0
Sildenafil RC 32 Hydroxy Acetildenafil
SDFC2

5-(2-Ethoxy-5-(2-(4-ethyl-3-oxopiperazin-1-yl)-1-hydroxyethyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:1335201-04-1
Sildenafil RC 53 Piperazonifil
SDFE3

5-(2-Ethoxy-5-(2-(4-ethyl-3-oxopiperazin-1-yl)acetyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:1446144-70-2
Sildenafil RC 52 Oxohongdenafil Oxoacetildenafil
SDFE2

5-(2-Ethoxy-5-(2-(4-methylpiperazin-1-yl)acetyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:949091-38-7
Sildenafil RC 50 Nor Acetildenafil
SDFE0

5-(2-Ethoxy-5-(4-(2-hydroxyethyl)piperazin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:139755-85-4
Sildenafil RC 35
SDFC5

5-(2-Ethoxy-5-(4-(2-hydroxyethyl)piperazin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione
CAS:479073-82-0
Sildenafil RC 38
SDFC8

5-(2-Ethoxy-5-(4-ethylpiperazin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione
CAS:479073-80-8
Sildenafil RC 60 Thiohomo Sildenafil
SDFF0

5-(2-Ethoxy-5-(4-methylpiperazin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione
CAS:479073-79-5
Sildenafil RC 61 Thiosildenafil
SDFF1

5-(2-Ethoxy-5-(4-methylpiperazin-1-ylsulfonyl)phenyl)-2-methyl-3-propyl-2H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:253178-46-0
Sildenafil RC 43
SDFD3

5-(2-Ethoxy-5-(4-methylpiperazin-1-ylsulfonyl)phenyl)-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:139755-95-6
Sildenafil RC 57
SDFE7

5-(2-Ethoxy-5-(piperazine-1-carbonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:1027192-92-2
Sildenafil RC 9 Desethyl Fondenafil
SDF59

5-(2-Ethoxy-5-(piperidin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:371959-09-0
Sildenafil RC 51 Norneo Sildenafil
SDFE1

5-(2-Ethoxy-5-nitrophenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:147676-99-1
Sildenafil RC 49
SDFD9

5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazole[4,3-d] pyrimidine-7-one
CAS:139756-21-1
Sildenafil Lactam Impurity
SDF47

5-(2-ETHOXYPHENYL)-1-METHYL-3-PROPYL-1H-PYRAZOLO[4,3-D]PYRIMIDINE-7(6H)-THIONE
CAS:479074-06-1
Sildenafil RC 26
SDFB6

5-(2-Ethoxyphenyl)-2-methyl-3-propyl-2H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:501120-40-7
Sildenafil RC 27
SDFB7

5-(2-Ethoxyphenyl)-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:139756-30-2
Sildenafil RC 28
SDFB8

5-(2-ETHYL-2,3-DIHYDRO-1H-INDEN-2-YL)-1H-IMIDAZOLE
CAS:104054-27-5
Atipamezole (Base)
AEZ00B

5-(2-ETHYL-2,3-DIHYDRO-1H-INDEN-2-YL)-1H-IMIDAZOLE HYDROCHLORIDE
CAS:104075-48-1
Atipamezole (HCl) Atipamezole Hydrochloride
AEZ00H

5-(2-FLUOROPHENYL)-1-(PYRIDIN-3-YLSULFONYL)-1H-PYRROLE-3-CARBALDEHYDE
CAS:881677-11-8
Vonoprazan RC 11 Vonoprazan 3-Formyl Impurity
VPZ71B

5-(2-FLUOROPHENYL)-1H-PYRROLE-3-CARBALDEHYDE
CAS:881674-56-2
Vonoprazan RC 2 Vonoprazan FPPC Impurity
VPZ62B

5-(2-FLUOROPHENYL)-1H-PYRROLE-3-CARBONITRILE
CAS:1240948-77-9
Vonoprazan RC 3 Vonoprazan Nitrile Impurity
VPZ63B

5-(2-FLUOROPHENYL)-1H-PYRROLE-3-CARBOXYLIC ACID
CAS:1883595-38-7
Vonoprazan RC 10
VPZ70B

5-(2-Hydroxy-3-(2-oxo-1,2,3,4-tetrahydroquinolin-5-yloxy)propoxy)-3,4-dihydroquinolin-2(1H)-one
CAS:56660-90-3
Carteolol EP Impurity E
CRH05

5-(2-HYDROXYETHYL)-3-(4-HYDROXY-2-METHYLPYRIMIDIN-5-YLMETHYL)-4-METHYLTHIAZOLIUM CHLORIDE
CAS:582-36-5
Thiamine 4-Hydroxy Oxythiamine
THM44

5-(2-Hydroxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:139756-26-6
Sildenafil RC 19
SDFA9

5-(2-Methoxy-5-(4-methylpiperazin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:263897-18-3
Sildenafil RC 12
SDFA2

5-(2-Phenylethenyl)-2-propan-2-ylbenzene-1,3-diol (E)-2-Isopropyl-5-styrylbenzene-1,3-diol
CAS:115781-08-3
Benvitimod Tapinarof
BVT00

5-(3,4,5-TRIMETHOXYBENZYL)PYRIMIDINE-2,4-DIAMINE
CAS:738-70-5
Trimethoprim
TMM00

5-(3,4-Diamino-2-thienyl)pentanoic acid
CAS:412308-26-0
Biotin EP Impurity C (Base)
BTN03B

5-(3,4-Diamino-2-thienyl)pentanoic acid dihydrochloride
Biotin EP Impurity C (2HCl)
BTN03H

5-(3,5-DIFLUOROBENZYL)-1H-INDAZOL-3-AMINE
CAS:1108745-30-7
Entrectinib RC 1
ETX61

5-(3,5-DIFLUOROBENZYL)-2-FLUOROBENZONITRILE
CAS:1108745-25-0
Entrectinib RC 3
ETX63

5-(3,7-Dimethyl-2,6-dioxo-2,3-dihydro-6H-purin-1(7H)-yl)pentanoic acid
CAS:38975-44-9
Pentoxifylline M4
PTX54

5-(3-((R)-1-(2-Hydroxyethylamino)-2,3-dihydro-1H-inden-4-yl)-1,2,4-oxadiazol-5-yl)-2-isopropoxybenzonitrile
CAS:1306760-86-0
Ozanimod (R)-Isomer
OZM50B

5-(3-((S)-1-(2-Hydroxyethylamino)-2,3-dihydro-1H-inden-4-yl)-1,2,4-oxadiazol-5-yl)-2-isopropoxybenzonitrile
CAS:1306760-87-1
Ozanimod (Base) (S)-Ozanimod
OZM00B

5-(3-((S)-1-(2-Hydroxyethylamino)-2,3-dihydro-1H-inden-4-yl)-1,2,4-oxadiazol-5-yl)-2-isopropoxybenzonitrile hydrochloride
CAS:1618636-37-5
Ozanimod (HCl) Ozanimod Hydrochloride
OZM00H

5-(3-(1-Hydroxy-2,3-dihydro-1H-inden-4-yl)-1,2,4-oxadiazol-5-yl)-2-isopropoxybenzonitrile
CAS:1201447-05-3
Ozanimod RC 2
OZM62B

5-(3-(2,4-Dimethylphenoxy)-2-hydroxypropyl)-1,3-bis(3-(3,5-dimethylphenoxy)-2-hydroxypropyl)-1,3,5-triazinane-2,4,6-trione
Metaxalone RC 7
MXL67

5-(3-(2-Carboxy-4-oxo-4H-chromen-5-yloxy)-2-hydroxypropoxy)-4-oxo-4H-chromene-2-carboxylic acid
CAS:16110-51-3
Cromolyn (Acid) Cromoglicic Acid
CMY00A

5-(3-(TERT-BUTYLAMINO)-2-HYDROXYPROPOXY)-3,4-DIHYDROQUINOLIN-2(1H)-ONE
CAS:51781-06-7
Carteolol (Base)
CRH00B

5-(3-(TERT-BUTYLAMINO)-2-HYDROXYPROPOXY)-3,4-DIHYDROQUINOLIN-2(1H)-ONE HYDROCHLORIDE
CAS:51781-21-6
Carteolol (HCl) Carteolol Hydrochloride
CRH00H

5-(3-BROMO-4,5-DIMETHOXYBENZYL)PYRIMIDINE-2,4-DIAMINE
CAS:16285-82-8
Trimethoprim EP Impurity F 3-Desmethoxy 3-Bromo T
TMM06

5-(3-Chloro-2-hydroxypropoxy)-3,4-dihydroquinolin-2(1H)-one
CAS:51781-13-6
Carteolol EP Impurity D
CRH04

5-(3-Chlorobenzyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine
CAS:55142-86-4
Ticlodipine EP Impurity G
TDP07B

5-(3-CHLOROBENZYL)-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE HYDROCHLORIDE
CAS:54943-16-7
Ticlodipine EP Impurity G (HCl)
TDP07H

5-(3-FLUOROPHENYL)-1H-PYRROLE-3-CARBALDEHYDE
Vonoprazan RC 8
VPZ68B

5-(3-HYDROXYPHENYL)-5-PHENYLIMIDAZOLIDINE-2,4-DIONE
CAS:30074-03-4
Phenytoin 3-Hydroxy
PNT53

5-(4'-(AZIDOMETHYL)-[1,1'-BIPHENYL]-2-YL)-1-TRITYL-1H-TETRAZOLE
CAS:124806-66-2
Valsartan RC 1
VST71

5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:133051-88-4
Losartan Bromo N2-Trityl Impurity Candesartan Bro
LST45

5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:133051-88-4
Candesartan Bromo N2-Trityl Impurity Losartan Bro
CST45

5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:133051-88-4
Irbesartan Bromo N2-Trityl Impurity Losartan Brom
IST15

5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:133051-88-4
Olmesartan Impurity 13 Candesartan Bromo N2-Trity
OLM73

5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-2H-tetrazole
CAS:138402-33-2
Losartan Bromomethyl Impurity
LST44

5-(4'-(Bromomethyl)(1,1'-biphenyl]-2-yl)-1-trityl-1H-tetrazole
CAS:124750-51-2
Olmesartan Impurity 12
OLM72

5-(4'-(Dibromomethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:151052-34-5
Olmesartan Impurity 14 Candesartan Dibromo N2-Tri
OLM74

5-(4'-(Dibromomethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:151052-34-5
Candesartan Dibromo N2-Trityl Impurity Candesarta
CST46

5-(4'-(DIBROMOMETHYL)-[1,1'-BIPHENYL]-2-YL)-1-TRITYL-1H-TETRAZOLE
Losartan RC 3
LST63

5-(4'-(Hydroxymethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:154709-18-9
Irbesartan Hydroxy N2-Trityl Impurity Candesartan
IST36

5-(4'-(Hydroxymethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:154709-18-9
Losartan Hydroxy N2-Trityl Impurity Candesartan H
LST36

5-(4'-(Hydroxymethyl)(1,1'-biphenyl)-2-yl)-2-trityl-2H-tetrazole
CAS:154709-18-9
Candesartan Hydroxy N2-Trityl Impurity Losartan N
CST36

5-(4'-Methyl-(1,1'-biphenyl)-2-yl)-1H-tetrazole
CAS:120568-11-8
Irbesartan Methyl Impurity Candesartan Methyl Imp
IST55

5-(4'-Methyl-(1,1'-biphenyl)-2-yl)-1H-tetrazole
CAS:120568-11-8
Losartan EP Impurity E Candesartan Methyl Impurit
LST05

5-(4'-Methyl-(1,1'-biphenyl)-2-yl)-1H-tetrazole
CAS:120568-11-8
Candesartan Methyl Impurity Irbesartan Methyl Imp
CST17

5-(4'-METHYL-[1,1'-BIPHENYL]-2-YL)-1-TRITYL-1H-TETRAZOLE
CAS:124750-53-4
Olmesartan Impurity 1 Olmesartan N1-Trityl Methyl
OLM61

5-(4-((Dimethylamino)methyl)phenyl)-8-fluoro-3,4-dihydro-2H-azepino[5,4,3-cd]indol-1(6H)-one
CAS:936736-28-6
Rucaparib N,N-Dimethyl
RCP56

5-(4-((Methylamino)methyl)phenyl)-3,4-dihydro-2H-azepino[5,4,3-cd]indol-1(6H)-one
Rucaparib Desfluoro
RCP53

5-(4-(1-CARBOXYETHYL)BENZYL)-6-METHOXY-6-OXOHEXANOIC ACID
Loxoprofen Impurity 13
LXP73A

5-(4-(2-(5-Ethyl-6-(4-(2-(5-ethylpyridin-2-yl)ethoxy)phenyl)pyridine-2-yl)ethoxy)benzyl)thiazolidine-2,4-dione
CAS:669716-56-7
Pioglitazone Related Compound B
PGT22

5-(4-(4-(2,3-DICHLOROPHENYL)PIPERAZIN-1-YL)BUTOXY)-3,4-DIHYDROQUINOLIN-2(1H)-ONE
CAS:203395-78-2
Aripiprazole Impurity 10
ARP90

5-(4-(4-(3-Fluorobenzyloxy)-3-chlorophenylamino)quinazolin-6-yl)furan-2-carbaldehyde
CAS:231278-84-5
Lapatinib Formyl Impurity
LPT61

5-(4-(4-(3-Fluorobenzyloxy)-3-chlorophenylamino)quinazolin-6-yl)furan-2-carboxylic acid
CAS:1152131-73-1
Lapatinib Carboxylic Acid Impurity
LPT55

5-(4-(6-Aminopyridin-3-yl)piperazin-1-yl)pyridin-2-amine
CAS:2144748-14-9
Palbociclib RC 6
PBC66

5-(4-(Aminomethyl)phenyl)-8-fluoro-3,4-dihydro-2H-azepino[5,4,3-cd]indol-1(6H)-one
CAS:1577983-73-3
Rucaparib N-Desmethyl
RCP55

5-(4-[2-(5-Ethylpyridin-2-yl)ethoxy]-3-(4-(2-(3-ethylpyridin-6-yl)ethoxy) phenyl) benzyl)thiazolidine-2,4-dione
CAS:952187-99-4
Pioglitazone EP Impurity G
PGT07

5-(4-BROMOPHENYL)-6-[2-[(5-BROMO-2-PYRIMIDINYL)OXY]ETHOXY]-4-PYRIMIDINAMINE
CAS:1433875-21-8
Macitentan N-Despropylaminosulfonyl Impurity
MTT54

5-(4-Chlorobenzyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine
CAS:55157-56-7
Ticlodipine EP Impurity H
TDP08B

5-(4-CHLOROBENZYL)-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE HYDROCHLORIDE
CAS:53885-39-5
Ticlodipine EP Impurity H (HCl)
TDP08H

5-(4-CHLOROBUTYL)-1-CYCLOHEXYL-1H-TETRAZOLE
CAS:73963-42-5
Cilostazol RC 1
CSZ61

5-(4-CHLOROPHENYL)-3-[(1-METHYLETHYL)IMINO]-N-PHENYL-3,5-DIHYDROPHENAZIN-2-AMINE
CAS:2158184-11-1
Clofazimine EP Impurity B Clofazimine USP RC B
CFM02

5-(4-CHLOROPHENYL)-6-ETHYLPYRIMIDINE-2,4-DIAMINE
CAS:58-14-0
Pyrimethamine
PMM00B

5-(4-CHLOROPHENYL)-6-METHYLPYRIMIDINE-2,4-DIAMINE
CAS:3275-44-3
Pyrimethamine EP Impurity B
PMM02B

5-(4-ETHOXY-3,5-DIMETHOXYBENZYL)PYRIMIDINE-2,4-DIAMINE
CAS:78025-68-0
Trimethoprim EP Impurity G 4-O-Desmethyl 4-O-Ethy
TMM07

5-(4-FLUOROBENZYL)-2,4-THIAZOLIDINEDIONE
CAS:291536-42-0
Pioglitazone Fluoro Impurity
PGT39

5-(4-Fluorophenyl)-1-{2-[(2R,4R)-4-hydroxy-6-oxotetrahydro-2H-pyran-2-yl]ethyl}-3-isopropyl-2-oxo-N,4-diphenyl-2,3-dihydro-1H-pyrrole-3-carboxamide
CAS:906552-19-0
Atorvastatin Pyrrolidone Lactone Atorvastatin Lac
ATV48

5-(4-FLUOROPHENYL)-1H-PYRROLE-3-CARBALDEHYDE
Vonoprazan RC 9
VPZ69B

5-(4-FLUOROPHENYL)-2-(1-METHYLETHYL)-N,4-DIPHENYL-1-[2-[(2R,4R)-TETRAHYDRO-4-HYDROXY-6-OXO-2H-PYRAN-2-YL]ETHYL]-1H-PYRROLE-3-CARBOXAMIDE
CAS:125995-03-1
Atorvastatin EP Impurity H Atorvastatin USP RC H
ATV08

5-(4-Fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-[(2R,4R)-tetrahydro-4-methoxy-6-oxo-2H-pyran-2-yl]ethyl]-1H-pyrrole-3-carboxamide Atorvastatin d-Lactone 3-O-Methyl Ether
Atorvastatin Lactone 3-O-Methyl Ether
ATV47

5-(4-Fluorophenyl)-2-isopropyl-1-(3-oxopropyl)-N,4-diphenyl-1H-pyrrole-3-carboxamide
CAS:110862-46-9
Atorvastatin 3-Oxopropyl Impurity
ATV83

5-(4-Fluorophenyl)-N-(2-hydroxyphenyl)-2-(1-methylethyl)-4-phenyl-1-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1H-pyrrole-3-carboxamide 2-Hydroxy Atorvastatin Lactone
CAS:163217-74-1
Atorvastatin 2-Hydroxy Lactone
ATV52

5-(4-Fluorophenyl)-N-(4-hydroxyphenyl)-2-(1-methylethyl)-4-phenyl-1-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1H-pyrrole-3-carboxamide 4-Hydroxy Atorvastatin Lactone
CAS:163217-70-7
Atorvastatin 4-Hydroxy Lactone
ATV54

5-(4-Hydroxy-3,5-dimethoxyphenyl)isobenzofuro[5,6-f][1,3]benzodioxol-6(8H)-one
CAS:153975-26-9
Etoposide EP Impurity Q
ESX17

5-(4-HYDROXYBENZYL)-1,3-THIAZOLIDINE-2,4-DIONE
CAS:74772-78-4
Pioglitazone Metabolite M1 Pioglitazone Phenol Im
PGT11

5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5] undecane
CAS:93413-70-8
Venlafaxine EP Impurity E (Base) Venlafaxine Cycl
VLF05B

5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5] undecane hydrochloride
CAS:93413-56-0
Venlafaxine EP Impurity E (HCl) Venlafaxine Cycli
VLF05H

5-(4-METHYLPHENYL)-5-PHENYLIMIDAZOLIDINE-2,4-DIONE
CAS:51169-17-6
Phenytoin EP Impurity F Phenytoin BP Impurity F
PNT06

5-(4-NITROPHENYL)-2-FURALDEHYDE-(2-CARBOXYMETHYL) SEMICARBAZONE
CAS:57268-33-4
Dantrolene USP RC B
DTL22

5-(4-NITROPHENYL)-2-FURANCARBOXALDEHYDE
CAS:7147-77-5
Dantrolene USP RC C
DTL23

5-(4�-Methyl[1,1�-biphenyl]-2-yl)-2-(triphenylmethyl)-2H-tetrazole
CAS:133909-97-4
Olmesartan Impurity 2 Olmesartan N2-Trityl Methyl
OLM62

5-(4H-1,2,4-TRIAZOL-4-YL)-1H-PYRAZOLE-4-CARBOXAMIDE
CAS:1346604-13-4
Allopurinol EP Impurity C Allopurinol USP RC C
ALP03

5-(5-((3R,5S)-3,5-Dimethylpiperazin-1-ylsulfonyl)-2-propoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:1391053-82-9
Sildenafil RC 4
SDF54

5-(5-((3S,5R)-3,5-Dimethylpiperazin-1-ylsulfonyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:496835-35-9
Sildenafil RC 44
SDFD4

5-(5-((3S,5R)-3,5-Dimethylpiperazin-1-ylsulfonyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione
CAS:856190-47-1
Sildenafil RC 59 Thioaildenafil
SDFE9

5-(5-(2-CHLORO-1-HYDROXYETHYL)-2-ETHOXYPHENYL)-1-METHYL-3-PROPYL-1H-PYRAZOLO[4,3-D]PYRIMIDIN-7(6H)-ONE
CAS:1391054-00-4
Sildenafil RC 34
SDFC4

5-(5-(3,5-Dimethylpiperazin-1-ylsulfonyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:1416130-63-6
Sildenafil RC 11
SDFA1

5-(5-(3-FLUORO-4-(METHYLCARBAMOYL)PHENYL)-8-OXO-6-THIOXO-5,7-DIAZASPIRO[3.4]OCTAN-7-YL)-3-(TRIFLUOROMETHYL)PICOLINAMIDE
Apalutamide RC 4
APD64

5-(5-(4-(2-Hydroxyethyl)piperazin-1-ylsulfonyl)-2-propoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:139755-87-6
Sildenafil RC 54
SDFE4

5-(5-(4-(2-Hydroxyethyl)piperazin-1-ylsulfonyl)-2-propoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione
CAS:479073-90-0
Sildenafil RC 55
SDFE5

5-(5-(4-Benzylpiperazin-1-ylsulfonyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
CAS:1446089-82-2
Sildenafil RC 6 N-Desmethyl N-Benzyl Sildenafil
SDF56

5-(5-Bromo-1-(2-fluorophenyl)-2-oxopentyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl Acetate
CAS:1373350-59-4
Prasugrel Bromobutyryl Impurity (Base)
PRS62B

5-(5-Bromo-1-(2-fluorophenyl)-2-oxopentyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate maleate
CAS:1373350-60-7
Prasugrel Bromobutyryl Impurity (Maleate)
PRS62M

5-(5-CHLORO-1-(2-FLUOROPHENYL)-2-OXOPENTYL)-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDIN-2-YL ACETATE
CAS:1056459-37-0
Prasugrel EP Impurity E (Base) Prasugrel Chlorobu
PRS05B

5-(5-Chloro-1-(2-fluorophenyl)-2-oxopentyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate HCl
CAS:1618107-96-2
Prasugrel EP Impurity E (HCl) Prasugrel Chlorobut
PRS05H

5-(5-CHLORO-1-(2-FLUOROPHENYL)-2-OXOPENTYL)-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDIN-2-YL ACETATE MALEATE
CAS:1373350-61-8
Prasugrel EP Impurity E (Maleate) Prasugrel Chlor
PRS05M

5-(5-FLUORO-2-OXO-1,2-DIHYDRO-INDOL-3-YLIDENEMETHYL)-2,4-DIMETHYL-1H-PYRROLE-3-CARBOXYLIC ACID
CAS:452105-33-8
Sunitinib Carboxylic Acid Impurity
SNT45

5-(8-Amino-6-methoxyquinolin-5-yl)-6-methoxyquinolin-8-amine
CAS:854454-58-3
Primaquine Dimer
PMQ53

5-(Acetoxymethyl)-3-(2-chloro-6-fluorophenyl)isoxazole-4-carboxylic acid
CAS:1797824-55-5
Flucloxacillin RC 6
FCX66

5-(ACETYLAMINO)-2,6-ANHYDRO-4-AZIDO-3,4,5-TRIDEOXY-D-GLYCERO-D-GALACTO-NON-2-ENONIC ACID METHYL ESTER
CAS:152178-79-5
Zanamivir azide methyl ester
ZNM51

5-(ACETYLAMINO)-2,6-ANHYDRO-4-AZIDO-3,4,5-TRIDEOXY-D-GLYCERO-D-GALACTO-NON-2-ENONIC ACID METHYL ESTER 7,8,9-TRIACETATE
CAS:130525-58-5
Zanamivir azide triacetate methyl ester
ZNM52

5-(Acetylamino)-4-(N-cyano)amino-2,6-anhydro-3,4,5-trideoxy-D-glycero-D-galacto-non-2-enonic acid methyl ester 7,8,9-triacetate
CAS:1228216-82-7
Zanamivir N-Cyano Amine Triacetate Methyl Ester
ZNM60

5-(ACETYLAMINO)-4-AMINO-2,6-ANHYDRO-3,4,5-TRIDEOXY-D-GLYCERO-D-GALACTO-NON-2-ENONIC ACID METHYL ESTER 7,8,9-TRIACETATE
CAS:139110-70-6
Zanamivir amine triacetate methyl ester
ZNM50

5-(ACETYLAMINO)-N,N'-BIS(2,3-DIHYDROXYPROPYL)-2,4,6-TRIIODOBENZENE-1,3-DICARBOXAMIDE
CAS:31127-80-7
Iohexol EP Impurity A Iohexol USP RC A Des(2,3-d
IHX01

5-(Acetylamino)-N,N'-bis(2,3-dihydroxypropyl)diiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity G Iohexol BP Impurity G
IHX07

5-(Acetylamino)-N,N�-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodobenzene-1,3-dicarboxamide
CAS:87932-07-8
Iopamidol EP Impurity C Iopamidol BP Impurity C
IPD03

5-(Aminocarbonyl)-1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3-pyridinecarboxylic acid methyl ester
CAS:114709-68-1
Nifedipine Monoamide Nifedipine Amide Impurity
NFD51

5-(AMINOCARBONYL)-5H-DIBENZ[B,F]AZEPIN-10-YL D-GLUCOPYRANOSIDURONIC ACID
Oxcarbazepine D-Glucuronide
OXC54

5-(Aminocarbonyl)-5H-dibenz[b,f]azepin-10-yl N-�-D-Glucopyranosiduronic Acid 1-Deoxy-1-[[(10,11-dihydro-10-oxo-5H-dibenz[b,f]azepin-5-yl)carbonyl]amino]-�-D-glucopyranuronic Acid
CAS:1260595-39-8
Oxcarbazepine N-�-D-Glucuronide
OXC58

5-(AMINOMETHYL)-2-METHYLPYRIMIDIN-4-AMINE
CAS:95-02-3
Thiamine Impurity 1 (Base)
THM51B

5-(AMINOMETHYL)-2-METHYLPYRIMIDIN-4-AMINE HCL
CAS:1195-07-9
Thiamine Impurity 1 (HCl)
THM51H

5-(CHLOROMETHYL)BENZO[D][1,3]DIOXOLE
CAS:20850-43-5
Tadalafil Impurity 1
TLF61

5-(Diacetylamino)-N-[2-(2,3-dihydroxypropoxy)-3-hydroxypropyl]-N'-(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity Q Iohexol BP Impurity Q
IHX17

5-(Diacetylamino)-N-[3-(2,3-dihydroxypropoxy)-2-hydroxypropyl]-N'-(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity P Iohexol BP Impurity P
IHX16

5-(Difluoro methoxy)-2-[[(3,4-dimethoxy-2-pyridinyl) methyl]sulfanyl]-1-methyl -1H-benzimidazole
Pantoprazole RC 45 Pantoprazole Sulfide N-Methyl
PTP45

5-(Difluoromethoxy)-1-((3,4-dimethoxypyridin-2-yl)methyl)-2-((3,4-dimethoxypyridin-2-yl)methylsulfinyl)-1H-benzo[d]imidazole
CAS:957470-59-6
Pantoprazole RC 4
PTP64

5-(Difluoromethoxy)-1H-benzo[d]imidazol-2(3H)-one
CAS:1806469-15-7
Pantoprazole RC 3
PTP63

5-(Difluoromethoxy)-2-(((3,4-dimethoxypyridin-2-yl)methyl)sulfinyl)-1-nitroso-1H-benzo[d]imidazole
Pantoprazole N-Nitroso Impurity
PTP48

5-(Difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl) methyl]sulfinyl]-1-methyl -1H-benzimidazole
CAS:624742-53-6
Pantoprazole EP Impurity D Pantoprazole USP RC D
PTP04

5-(Difluoromethoxy)-2-mercapto-1-methyl-1H-benzimidazole
Pantoprazole RC 55 N-Methyl Pantoprazole Sulfide
PTP55

5-(DIFLUOROMETHOXY)-2-MERCAPTO-1H-BENZIMIDAZOLE
CAS:97963-62-7
Pantoprazole EP Impurity C Pantoprazole USP RC C
PTP03

5-(DIMETHYLAMINO)-9-METHYL-2-PROPYL-1H-PYRAZOLO[1,2-A][1,2,4]BENZOTRIAZINE-1,3(2H)-DIONE
CAS:13539-59-8
Azapropazone
AZZ00

5-(FORMYLAMINO)-1H-PYRAZOLE-4-CARBOXAMIDE
CAS:22407-20-1
Allopurinol EP Impurity B Allopurinol USP RC B
ALP02

5-(HYDROXYMETHYL)-2,4-DIMETHYLPYRIDIN-3-OL
CAS:61-67-6
Pyridoxine EP Impurity B (Base)
PDX02B

5-(Hydroxymethyl)-2,4-dimethylpyridin-3-ol HCl
CAS:148-51-6
Pyridoxine EP Impurity B (HCl)
PDX02H

5-(HYDROXYMETHYL)-2-METHOXYBENZENESULFONAMIDE
CAS:105764-06-5
Tamsulosin RC 7
TMS67

5-(Hydroxymethyl)-N-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxamide
CAS:1058722-46-5
Leflunomide 5-Hydroxymethyl Analog Leflunomide Me
LFM51

5-(HYDROXYMETHYL)THIAZOLE
CAS:38585-74-9
Cobicistat RC 2 (Base)
CBC62B

5-(METHOXYCARBONYL)-2,6-DIMETHYL-4-(3-NITROPHENYL)PYRIDINE-3-CARBOXYLIC ACID
CAS:64603-72-1
Nicardipine Dehydro Carboxylic Acid Impurity
NCD51

5-(Methoxymethyl)-1-phenylpyridin-2(1H)-one
CAS:914918-69-7
Pirfenidone 5-Methoxymethyl
PFD53

5-(Methylsulfinylmethyl)-3-((5-nitrofuran-2-yl)methyleneamino)oxazolidin-2-one
CAS:1445990-09-9
Nifuratel Impurity A Nifuratel Sulfoxide
NFT61

5-(Methylsulfonylmethyl)-3-((5-nitrofuran-2-yl)methyleneamino)oxazolidin-2-one
Nifuratel Impurity B Nifuratel Sulfone
NFT62

5-(Methylthiomethyl)-3-((5-nitrofuran-2-yl)methyleneamino)oxazolidin-2-one
CAS:4936-47-4
Nifuratel
NFT00

5-(N-Acetylamino)-2-hydroxybenzoic acid
CAS:51-59-2
Mesalazine N-Acetyl Impurity
MSL31

5-(N-Propionylamino)-2-hydroxybenzoic acid
CAS:93968-80-0
Mesalazine N-Propionyl Impurity
MSL32

5-(Oxiran-2-ylmethoxy)-3,4-dihydroquinolin-2(1H)-one
CAS:51781-14-7
Carteolol EP Impurity C
CRH03

5-(Phenylsulfinyl)-1H-benzimidazol-2-amine
CAS:69489-26-5
Oxfendazole EP Impurity C Fenbendazole Amine Sulf
OXF03

5-(PHENYLSULFINYL)-1H-BENZO[D]IMIDAZOL-2-AMINE
CAS:69489-26-5
Fenbendazole Amine Sulfoxide
FDZ51

5-(PIPERAZIN-1-YL)PYRIDIN-2-AMINE
CAS:1082876-26-3
Palbociclib RC 8 (Base) Palbociclib Impurity A
PBC68B

5-(PIPERAZIN-1-YL)PYRIDIN-2-AMINE DIHYDROCHLORIDE
CAS:2230807-31-3
Palbociclib RC 8 (2HCl) Palbociclib Impurity A (2
PBC68H

5-(PROPYLSULFANYL)-1H-BENZIMIDAZOL-2-AMINE
CAS:80983-36-4
Albendazole EP Impurity A
ABD01

5-(Propylsulfonyl)-1H-benzimidazol-2-amine
CAS:80983-34-2
Albendazole EP Impurity D
ABD04

5-(PROPYLTHIO)-1H-BENZO[D]IMIDAZOLE
Albendazole Impurity 2
ABD72

5-(�-D-Glucopyranosyloxy)-2,3-dihydro-7-hydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
CAS:23711-00-4 +
Naringenin 5-�-D-Glucoside
NGX51

5-(TRIFLUOROMETHOXY)-2-BENZOTHIAZOLAMINE
CAS:752969-85-0
Riluzole 5-Trifluoromethoxy Isomer
RLZ65

5-[(1E)-[4-[[(2-Carboxyethyl)amino]carbonyl]phenyl]azo]-2-hydroxybenzoic acid
CAS:80573-04-2
Balsalazide (Diacid)
BSL00A

5-[(1E)-[4-[[(2-CARBOXYETHYL)AMINO]CARBONYL]PHENYL]AZO]-2-HYDROXYBENZOIC ACID DISODIUM SALT
CAS:82101-18-6 & 213594-60-6 (anhydrous)
Balsalazide Disodium (Anhydrous)
BSL00X

5-[(1E)-[4-[[(2-Carboxyethyl)amino]carbonyl]phenyl]azo]-2-hydroxybenzoic acid disodium salt dihydrate
CAS:150399-21-6 (dihydrate)
Balsalazide Disodium (Dihydrate)
BSL00N

5-[(1E)-2-(4-Hydroxyphenyl)ethenyl]-1,3-benzenediol 1,3-Bis(hydrogen sulfate)
CAS:858187-21-0
Resveratrol 3,5-Disulfate Impurity
RVT56

5-[(1E)-2-[4-(Acetyloxy)phenyl]ethenyl]-1,3-benzenediol 1-Acetate
CAS:861446-14-2
Resveratrol Diacetate Impurity
RVT62

5-[(1E)-2-[4-(Acetyloxy)phenyl]ethenyl]-1,3-benzenediol1,3-Diacetate
CAS:42206-94-0
Resveratrol Triacetate Impurity
RVT63

5-[(1E)-2-[4-[[(1-Methylethoxy-3-oxopropyl)amino]carbonyl]phenyl]diazenyl]-2-hydroxybenzoic acid
CAS:1346606-13-0
Balsalazide Isopropyl ester
BSL53

5-[(1E)-3,3-Dimethyltriaz-1-enyl]-1H-imidazole-4-carboxamide
CAS:3/4/4342
Dacarbazine
DCB00

5-[(1R)-2-[(5,6-Diethyl-2,3-dihydro-1H-inden-2-yl)amino]-1-hydroxyethyl]-8-benzyloxy-2(1H)-quinolinone
CAS:435273-75-9
Indacaterol O-Benzyl Impurity
IDC53

5-[(1R)-2-[(5,6-Diethyl-2,3-dihydro-1H-inden-2-yl)amino]-1-hydroxyethyl]-8-hydroxy-2(1H)-quinolinone
CAS:312753-06-3
Indacaterol (Base)
IDC00B

5-[(1R)-2-[(5,6-Diethyl-2,3-dihydro-1H-inden-2-yl)amino]-1-hydroxyethyl]-8-hydroxy-2(1H)-quinolinone maleic acid salt
CAS:753498-25-8
Indacaterol (Maleate)
IDC00M

5-[(1RS)-1,2-Dihydroxyethyl]-1,3-phenylenebis(dimethylcarbamate
CAS:112935-92-9
Bambuterol EP Impurity B
BBT02

5-[(1RS)-1-HYDROXYETHYL]-1,3-PHENYLENE BIS(DIMETHYLCARBAMATE)
CAS:112935-93-0
Bambuterol EP Impurity D
BBT04

5-[(1RS)-2-(Benzylamino)-1-hydroxyethyl]-2-hydroxybenzamide
CAS:2386661-13-6
Labetalol EP Impurity C
LBT03B

5-[(1RS)-2-[(1,1-Dimethylethyl)amino]-1-hydroxyethyl]-1,3-phenylene bis(dimethylcarbamate)
CAS:81732-65-2
Bambuterol (Base)
BBT00B

5-[(1RS)-2-[(1,1-Dimethylethyl)amino]-1-hydroxyethyl]-1,3-phenylene bis(dimethylcarbamate) hydrochloride
CAS:81732-46-9
Bambuterol HCl
BBT00H

5-[(1RS)-2-Amino-1-hydroxyethyl]-2-hydroxybenzamide
CAS:68807-83-0
Labetalol EP Impurity D (Base)
LBT04B

5-[(1RS)-2-Amino-1-hydroxyethyl]-2-hydroxybenzamide hydrochloride
CAS:32780-65-7
Labetalol EP Impurity D (HCl)
LBT04H

5-[(1S)-(2-Chlorophenyl)-2-methoxy-2-oxoethyl]-6,7-dihydrothieno[3,2-c] pyridinium
CAS:1251736-87-4
Clopidogrel Pyridinium (Base)
CPG41B

5-[(1S)-(2-Chlorophenyl)-2-methoxy-2-oxoethyl]-6,7-dihydrothieno[3,2-c] pyridinium bromide
CAS:1396607-49-0
Clopidogrel Pyridinium (Bromide)
CPG41X

5-[(1S)-2-[(5,6-Diethyl-2,3-dihydro-1H-inden-2-yl)amino]-1-hydroxyethyl]-8-hydroxy-2(1H)-quinolinone
CAS:1235445-80-3
Indacaterol Enantiomer (Base)
IDC50B

5-[(1S)-2-[(5,6-Diethyl-2,3-dihydro-1H-inden-2-yl)amino]-1-hydroxyethyl]-8-hydroxy-2(1H)-quinolinone hydrochloride
CAS:1384188-70-8
Indacaterol Enantiomer (HCl)
IDC50H

5-[(2,4-DIAMINO-5-PYRIMIDINYL)METHYL]-1,2,3-BENZENETRIOL
CAS:63618-50-8
Diaveridine Triol Impurity
DVD53

5-[(2-CHLOROETHYL)(2-HYDROXYETHYL)AMINO]-1-METHYL-1H-BENZIMIDAZOLE-2-BUTANOIC ACID
CAS:109882-27-1
Bendamustine USP RC E (Base) Bendamustine Monohyd
BDM25B

5-[(2-CHLOROETHYL)(2-HYDROXYETHYL)AMINO]-1-METHYL-1H-BENZIMIDAZOLE-2-BUTANOIC ACID ETHYL ESTER
CAS:898224-95-8
Bendamustine Monohydroxy Acid Ethyl Ester
BDM37

5-[(2-Chloroethyl)(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazole-2-butanoic acid HCl
Bendamustine USP RC E (HCl) Bendamustine Monohydr
BDM25H

5-[(2-Chlorophenyl)-2-methoxy-2-oxoethyl]-6,7-dihydrothieno[3,2-c] pyridinium bromide
Clopidogrel Pyridinium Racemate (Bromide)
CPG71X

5-[(2R)-2-[[2-(2-Ethoxyphenoxy)ethyl]-N-nitroso-amino]propyl]-2-methoxybenzene sulfonamide
Tamsulosin N-Nitroso Impurity N-Nitroso Tamsulosi
TMS48

5-[(2R)-2-[[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxybenzene sulfonamide
CAS:106133-20-4
Tamsulosin (Base)
TMS00B

5-[(2R)-2-[[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxybenzene sulfonamide hydrochloride
CAS:106463-17-6
Tamsulosin HCl
TMS00H

5-[(2R)-2-[[2-(2-ETHOXYPHENOXY)ETHYL]AMINO]PROPYL]-2-METHOXYBENZENESULFONIC ACID
CAS:890708-67-5
Tamsulosin Sulfonic Acid
TMS50

5-[(2R)-2-[bis[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxy benzene sulfonamide HCl
CAS:918867-88-6
Tamsulosin EP Impurity A
TMS01H

5-[(2R)-2-AMINOPROPYL]-2-METHOXYBENZENESULFONAMIDE
CAS:112101-81-2
Tamsulosin EP Impurity B (Base)
TMS02B

5-[(2R)-2-Aminopropyl]-2-methoxybenzenesulfonamide HCl
CAS:112101-75-4
Tamsulosin EP Impurity B (HCl)
TMS02H

5-[(2RS)-2,3-Dihydroxypropoxy]-3,4-dihydroquinolin-2(1H)-one
CAS:54945-72-1
Carteolol EP Impurity G
CRH07

5-[(2RS)-2-[[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxybenzene sulfonamide hydrochloride
CAS:80223-99-0
Tamsulosin Racemate (HCl)
TMS30H

5-[(2RS)-2-[[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxybenzene sulfonamide hydrochloride
CAS:94666-07-6
Tamsulosin Racemate (Base)
TMS30B

5-[(2RS)-2-Hydroxy-3-methoxypropoxy]-3,4-dihydroquinolin-2(1H)-one
Carteolol EP Impurity F Carteolol USP RC F
CRH06

5-[(2RS)-3-[(1,1-Dimethylethyl)amino]-2-hydroxypropoxy]quinolin-2(1H)-one
Carteolol EP Impurity H (Base)
CRH08B

5-[(2RS)-3-[(1,1-Dimethylethyl)amino]-2-hydroxypropoxy]quinolin-2(1H)-one hydrochloride
CAS:53371-79-2
Carteolol EP Impurity H (HCl) Dehydrocarteolol Hy
CRH08H

5-[(2S)-2-[[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxy benzene sulfonamide
CAS:106138-88-9
Tamsulosin EP Impurity G (Base) (S)-Tamsulosin
TMS07B

5-[(2S)-2-[[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxy benzene sulfonamide HCl
CAS:106463-19-8
Tamsulosin EP Impurity G (HCl) (S)-Tamsulosin HCl
TMS07H

5-[(3,5-Dimethylphenoxy)methyl]-3-[(2-oxo-5-oxazolidinyl)methyl]-2-oxazolidinone
CAS:1392430-18-0
Metaxalone RC 5
MXL65

5-[(3-Carboxy-4-hydroxyphenyl)diazenyl]-2,4'-dihydroxybiphenyl-3,3'-dicarboxylic acid
Olsalazine EP Impurity G 3-(3-Carboxy-4-hydroxy)p
OSL07

5-[(3aS,4S,6aR)-3-Benzyl-2-oxohexahydrothieno[3,4-d]imidazol-4-yl]pentanoic acid and 5-[(3aS,4S,6aR)-1-benzyl-2-oxohexahydrothieno[3,4-d]imidazol-4-yl]pentanoic acid
CAS:76335-62-1 57229-92-2
Biotin EP Impurity E Mixture of N1-Benzyl Biotin
BTN05M

5-[(4,5-DIHYDRO-1H-IMIDAZOL-2-YL)AMINO]-6-HYDROXY-2-METHYL-4(3H)-PYRIMIDINONE
CAS:352457-32-0
Moxonidine Dihydroxy Impurity (Base)
MXN52B

5-[(4,5-Dihydro-1H-imidazol-2-yl)amino]-6-hydroxy-2-methyl-4(3H)-pyrimidinone dihydrochloride
Moxonidine Dihydroxy Impurity (2HCl)
MXN52H

5-[(4-Fluorophenyl)methylene]-2,4-thiazolidinedione
CAS:262601-87-6
Rosiglitazone RC 1
RGT61

5-[(Hydroxyacetyl)amino]-N,N�-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodobenzene-1,3-dicarboxamide
CAS:77868-41-8
Iopamidol EP Impurity B Iopamidol USP RC B Desme
IPD02

5-[(Imidazolidin-2-ylidene)amino]-6-methoxy-2-methylpyrimidin-4-ol
CAS:352457-34-2
Moxonidine EP Impurity C 4-Hydroxy Moxonidine
MXN03

5-[[(1,1-Dimethylethyl)amino]acetyl]-1,3-phenylenebis(dimethylcarbamate)
CAS:112935-94-1
Bambuterol EP Impurity F (Base) 1-Keto Bambuterol
BBT06B

5-[[(1,1-Dimethylethyl)amino]acetyl]-1,3-phenylenebis(dimethylcarbamate) hydrochloride
CAS:2153431-91-3
Bambuterol EP Impurity F (HCl) 1-Keto Bambuterol
BBT06H

5-[[(1R)-1-METHYL-2-[6-[(ISOPROPOXYCARBONYL)AMINO]-9H-PURIN-9-YL]ETHOXY]METHYL]-2,4,6,8-TETRAOXA-5-PHOSPHANONANEDIOIC ACID BIS(1-METHYLETHYL) ESTER 5-OXIDE
CAS:1244022-54-5
Tenofovir Disoproxil Isopropoxycarbonyl Impurity
TNF52B

5-[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic acid 1,9-bis(1-methylethyl) ester 5-oxide
CAS:201341-05-1
Tenofovir Disoproxil (Base)
TNF00B

5-[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic acid 1,9-bis(1-methylethyl) ester 5-oxide (2E)-2-butenedioate
CAS:202138-50-9
Tenofovir Disoproxil (Fumarate)
TNF00F

5-[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic acid 1,9-bis(1-methylethyl) ester 5-oxide maleate salt
CAS:1276030-80-8
Tenofovir Disoproxil (Maleate)
TNF00M

5-[[(1R)-2-[6-[(Methoxymethyl)amino]-9H-purin-9-yl]-1-methylethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic acid 1,9-bis(1-methylethyl) ester 5-oxide
Tenofovir Disoproxil 6N-Methoxymethyl Impurity
TNF56B

5-[[(1R)-2-[6-[[[[9-[(2R)-2,11-Dimethyl-5-[[[(1-methylethoxy)carbonyl]oxy] methoxy]-5-oxido-9-oxo-3,6,8,10-tetraoxa-5-phosphadodec-1-yl]-9H-purin-6-yl]amino]methyl]amino]-9H-purin-9-yl]-1-methylethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic acid 1,9
CAS:1093279-76-5
Tenofovir Disoproxil IP Impurity J Tenofovir Diso
TNF80B

5-[[(1S)-2-(6-AMINO-9H-PURIN-9-YL)-1-METHYLETHOXY]METHYL]-2,4,6,8-TETRAOXA-5-PHOSPHANONANEDIOIC ACID 1,9-BIS(1-METHYLETHYL) ESTER 5-OXIDE
CAS:1280130-08-6
Tenofovir Disoproxil IP Impurity G (Base) Tenofov
TNF77B

5-[[(1S)-2-(6-AMINO-9H-PURIN-9-YL)-1-METHYLETHOXY]METHYL]-2,4,6,8-TETRAOXA-5-PHOSPHANONANEDIOIC ACID 1,9-BIS(1-METHYLETHYL) ESTER 5-OXIDE (2E)-2-BUTENEDIOATE
CAS:1432630-26-6
Tenofovir Disoproxil IP Impurity G (Fumarate) Ten
TNF77F

5-[[(2R,3S)-2-[(1R)-1-[3,5-bis(Trifluoromethyl) phenyl]ethoxy]-3-(4'-fluoro biphenyl-3-yl) morpholin-4-yl]methyl]-1,2-dihydro-3H-1,2,4-triazol-3-one
CAS:2348441-62-1
Aprepitant EP Impurity B Aprepitant meta-Biphenyl
APP02

5-[[(2R,3S)-2-[(1R)-1-[3,5-bis(Trifluoromethyl)phenyl]ethoxy]-3-(4'-fluoro biphenyl-4-yl) morpholin-4-yl]methyl]-1,2-dihydro-3H-1,2,4-triazol-3-one
CAS:2348441-63-2
Aprepitant EP Impurity C Aprepitant para-Biphenyl
APP03

5-[[(4-FLUOROPHENYL)METHYL]AMINO]-1,3-DIHYDRO-2H-IMIDAZO[4,5-B]PYRIDIN-2-ONE
CAS:951624-49-0
Flupirtine 2-Oxo Impurity Flupirtine Maleate Impu
FPT52B

5-[[(METHYLAMINO)SULFONYL]METHYL]-1H-INDOLE-3-ACETIC ACID
CAS:103628-44-0
Sumatriptan Carboxylic Acid Impurity
SMT36

5-[[2(R)-[1(S)-[3,5-Bis(Trifluoromethyl)phenyl]ethoxy]-3(S)-(4-fluorophenyl)4-morpholinyl]methyl]-1,2-dihydro-3H-1,2,4-triazol-3-one
CAS:170902-81-5
Fosaprepitant Impurity A
FSP51

5-[[2-(6-Amino-9H-purin-9-yl)ethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic acid 1,9-bis(1-methylethyl) ester 5-oxide
CAS:365417-53-4
Tenofovir Disoproxil Desmethyl (Base)
TNF47B

5-[[2-(6-Amino-9H-purin-9-yl)ethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic acid 1,9-bis(1-methylethyl) ester 5-oxide (2E)-2-butenedioate
Tenofovir Disoproxil Desmethyl (Fumarate)
TNF47F

5-[[4-(Hydroxymethyl)phenoxy]methyl]-3-isopropyl-1,3-oxazolidin-2-one
CAS:1071765-44-0
Bisoprolol EP Impurity U
BSP21

5-[[4-[(2,3-DIMETHYL-2H-INDAZOL-6-YL)AMINO]-2-PYRIMIDINYL]AMINO]-2-METHYLBENZENESULFONAMIDE
CAS:1252927-47-1
Pazopanib N-Desmethyl Impurity
PZP50B

5-[[4-[(2,3-Dimethyl-2H-indazol-6-yl)methylamino]-2-pyrimidinyl]amino]-2-methyl-benzenesulfonamide
CAS:444731-52-6
Pazopanib (Base)
PZP00B

5-[[4-[(2,3-Dimethyl-2H-indazol-6-yl)methylamino]-2-pyrimidinyl]amino]-2-methyl-benzenesulfonamide HCl
CAS:635702-64-6
Pazopanib (HCl) Pazopanib Hydrochloride
PZP00H

5-[[4-[(3,4-Dihydro-6-hydroxy-2,5,7,8-tetramethyl-2H-1-benzopyran-2-yl)methoxy]phenyl]methyl]-2,4-thiazolidinedione
CAS:97322-87-7
Troglitazone
TGZ00

5-[[4-[2-(2-Pyridinylamino)ethoxy]phenyl]methyl]-2,4-thiazolidinedione
CAS:257892-31-2
Rosiglitazone N-Desmethyl Analog
RGT52B

5-[[4-[2-(5-(1-Carboxylmethyl)-2-pyridinyl)ethoxy]phenyl]methyl]-2,4-thiazolidinedione
CAS:146062-48-8
Pioglitazone Metabolite M5
PGT15

5-[[4-[2-(5-(1-HYDROXYETHYL)-2-PYRIDINYL)ETHOXY]PHENYL]METHYL]-2,4-THIAZOLIDINEDIONE
CAS:146062-44-4
Pioglitazone Metabolite M4
PGT14

5-[[4-[2-(5-ACETYL-2-PYRIDINYL)ETHOXY]PHENYL]METHYL]-2,4-THIAZOLIDINEDIONE
CAS:146062-45-5
Pioglitazone Metabolite M3 Pioglitazone Keto Impu
PGT13

5-[[4-[2-(5-ETHYL-2-PYRIDINYL)-2-HYDROXY-ETHOXY]PHENYL]METHYL]-2,4-THIAZOLIDINEDIONE
CAS:101931-00-4
Pioglitazone Metabolite M2 Pioglitazone Hydroxy I
PGT12

5-[[4-[2-(5-Ethyl-2-pyridinyl)ethoxy]phenyl]methyl]-5-hydroxy-2,4-thiazolidinedione
CAS:625853-74-9
Pioglitazone EP Impurity A Pioglitazone USP RC A
PGT01

5-[[4-[2-(5-Ethyl-2-pyridinyl)ethoxy]phenyl]methyl]-N-[2-(5-ethylpyridin-2-yl)ethyl]-2,4-thiazolidinedione
CAS:952188-00-0
Pioglitazone EP Impurity C Pioglitazone USP RC C
PGT03

5-[[4-[2-(5-ETHYL-2-PYRIDINYL]ETHOXY]PHENYL]METHYL]-2,4-THIAZOLIDINEDIONE N-OXIDE
CAS:145350-09-0
Pioglitazone N-oxide
PGT31

5-[[4-[2-[(5-Hydroxy-2-pyridinyl)methylamino]ethoxy]phenyl]methyl]-2,4-thiazolidinedione
CAS:257883-22-0
Rosiglitazone 5-Hydroxy Analog
RGT51B

5-[[4-[2-[[6-(4-METHOXYPHENOXY)-4-PYRIMIDINYL]METHYLAMINO]ETHOXY]PHENYL]METHYL]-2,4-THIAZOLIDINEDIONE
CAS:607723-33-1
Lobeglitazone (Base)
LBG00B

5-[[4-[2-[[6-(4-Methoxyphenoxy)-4-pyrimidinyl]methylamino]ethoxy]phenyl]methyl]-2,4-thiazolidinedione sulfate
Lobeglitazone (Sulfate)
LBG00S

5-[1-(2,3-Dimethylphenyl)ethyl]-1-ethyl-1H-imidazole
CAS:2250243-24-2
Medetomidine N-Ethyl Impurity Ethylmedetomidine
MDT53B

5-[1-(2,3-Dimethylphenyl)ethyl]-1-ethyl-1H-imidazole hydrochloride
Medetomidine N-Ethyl Impurity (HCl) Ethylmedetomi
MDT53H

5-[1-(2-Fluorophenyl)-2-oxopropyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridine
CAS:150322-22-8
Prasugrel Impurity 11
PRS81B

5-[1-[(5,6-Diethyl-2,3-dihydro-1H-inden-2-yl)amino]-2-hydroxyethyl]-8-(phenylmethoxy)-2(1H)-quinolinone
CAS:773895-24-2
Indacaterol Impurity A
IDC51

5-[2,5-Dimethyl-4-(prop-1-enyl)phenoxy]-2,2-dimethylpentanoic acid 4-(1-Propenyl) Gemfibrozil
CAS:500904-61-0
Gemfibrozil EP Impurity E Gemfibrozil USP RC A
GFZ05

5-[2-(Acetyloxy)ethyl]-3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methylthiazolium chloride
CAS:130967-52-1
Thiamine EP Impurity G (Base) Acetyl Thiamine Th
THM07B

5-[2-(Acetyloxy)ethyl]-3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methylthiazolium chloride hydrochloride
CAS:1037-29-2
Thiamine EP Impurity G (HCl) Acetyl Thiamine HCl
THM07H

5-[2-(Phenylsulfonyl)ethyl]-1H-indole
CAS:1225327-16-1
Eletriptan Impurity D Eletriptan Des-dimethylpyrr
ETT64B

5-[2-[4',5-BIS(PYRIDIN-2-YLSULFAMOYL)BIPHENYL-2-YL]DIAZENYL]-2-HYDROXYBENZOIC ACID
CAS:1391062-37-5
Sulfasalazine EP Impurity G
SSZ07

5-[2-[4-(1,2-Benzisothiazol-3-yl)-1-oxido-1-piperazinyl]ethyl]-6-chloro-1,3-dihydro-2H-indol-2-one
CAS:188797-76-4
Ziprasidone N-Oxide
ZPS50

5-[2-[4-(1,2-Benzisothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1,3-dihydro-2H-indol-2-one
CAS:146939-27-7
Ziprasidone (Base)
ZPS00B

5-[2-[4-(1,2-Benzisothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1,3-dihydro-2H-indol-2-one hydrochloride monohydrate
CAS:138982-67-9
Ziprasidone (HCl Monohydrate) Ziprasidone Hydroch
ZPS00H

5-[2-[4-(1,2-Benzisothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1H-indole-2,3-dione
CAS:1159977-56-6
Ziprasidone EP Impurity B (Base) 3-Oxo Ziprasidon
ZPS02B

5-[2-[Benzyl(methyl)amino]ethoxycarbonyl]-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydro pyridine-3-carboxylic acid HCl
CAS:123973-71-7
Nicardipine O-Desmethyl HCl
NCD54H

5-[2-{(1,1-Dimethylethyl)amino}-1-hydroxyethyl]-2-hydroxy-benzaldehyde
CAS:156339-88-7
Levalbuterol USP RC D Salbutamol EP Impurity D S
LAB24B

5-[2-{(1,1-Dimethylethyl)amino}-1-hydroxyethyl]-2-hydroxy-benzaldehyde
CAS:156339-88-7
Salbutamol EP Impurity D Levalbuterol USP RC D S
SAB04B

5-[2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-5,6,7,7a-tetrahydrothieno [3,2-c] pyridin-2(4H)-one
CAS:150322-38-6
Prasugrel EP Impurity D (Base) Prasugrel Thiolact
PRS04B

5-[2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-7a-hydroxy-5,6,7,7a-tetrahydrothieno [3,2-c] pyridin-2(4H)-one
CAS:947502-66-1
Prasugrel EP Impurity F (Base) Prasugrel Hydroxy
PRS06B

5-[2-Cyclopropyl-1-(3-fluorophenyl)-2-oxoethyl]-5,6,7,7a-tetrahydrothieno [3,2-c] pyridin-2(4H)-one
CAS:1618107-97-3
Prasugrel meta-Fluoro Isomer Thiolactone
PRS53B

5-[2-Cyclopropyl-1-(3-fluorophenyl)-2-oxoethyl]-5,6,7,7a-tetrahydrothieno [3,2-c] pyridin-2(4H)-one oxalate
Prasugrel meta-Fluoro Isomer Thiolactone (Oxalate)
PRS53X

5-[2-Cyclopropyl-1-(4-fluorophenyl)-2-oxoethyl]-5,6,7,7a-tetrahydrothieno [3,2-c] pyridin-2(4H)-one
CAS:1618107-98-4
Prasugrel para-Fluoro Isomer Thiolactone
PRS54

5-[2-Ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl- 7H-pyrazolo[4,3-d]pyrimidine-7-thione
CAS:479073-86-4
Sildenafil N-Desmethyl Thione Impurity Desmethyl
SDF50

5-[2-Ethoxy-5-(4-ethylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one
CAS:642928-07-2
Sildenafil N-Ethyl Analog
SDF36

5-[2-Ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one
CAS:139755-83-2
Sildenafil (Base)
SDF00B

5-[2-Ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one citrate salt
CAS:171599-83-0
Sildenafil (Citrate) Sildenafil Citrate
SDF00C

5-[2-Ethoxy-5-(piperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one
CAS:139755-82-1
Sildenafil EP Impurity F N-Desmethyl Sildenafil
SDF06

5-[2-ETHOXY-5-[(4-METHYL-4-OXIDO-1-PIPERAZINYL)SULFONYL]PHENYL]-1,6-DIHYDRO-1-METHYL-3-(2-METHYLPROPYL)-7H-PYRAZOLO[4,3-D]PYRIMIDIN-7-ONE
CAS:1391053-95-4
Sildenafil EP Impurity A Sildenafil USP RC A Sil
SDF01

5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one
CAS:1094598-75-0
Sildenafil EP Impurity B Sildenafil N-Oxide
SDF02

5-[2-Ethoxy-5-[4-[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonyl]phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
CAS:1346603-48-2
Sildenafil Monosulfone Dimer Impurity
SDF42

5-[2-Hydroxy-3-[[2-(2-methoxyphenoxy)ethyl]amino]propoxy]-9H-carbazol-1-yl �-D-Glucopyranosiduronic Acid
CAS:131087-99-5
Carvedilol 8-Hydroxy 8-O-beta-D-Glucuronide
CVD53

5-[2-Hydroxy-5-(4-methylpiperazinylsulphonyl)phenyl]1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyramidin-7-one
CAS:139755-91-2
Sildenafil EP Impurity C Sildenafil O-Desethyl An
SDF03

5-[3,6-Dimethyl-2-(prop-1-enyl)phenoxy]-2,2-dimethylpentanoic acid 6�-Propene-1-yl Gemfibrozil
CAS:1798429-95-4
Gemfibrozil EP Impurity D
GFZ04

5-[3-(1-Adamantyl)-4-methoxyphenyl]2-formyl cinnamaldehyde
Adapalene Impurity 4
ADP64

5-[3-(Dimethyl-amino)-2-methylpropyl]-10,11-dihydro-5H-dibenz[b,f]azepin-2-ol
CAS:2064-15-5
Trimipramine RC 1 2-Hydroxy Trimipramine
TMP51B

5-[3-(Dimethylamino)propyl]-10,11-dihydro-5H-dibenz[b,f]azepin-2-ol
CAS:303-70-8
Imipramine 2-Hydroxy Impurity
IPM52

5-[3-(Dimethylamino)propyl]-10,11-dihydro-5H-dibenz[b,f]azepin-2-yl �-D-glucopyranosiduronic acid
CAS:54190-76-0
Imipramine 2-Hydroxy �-D-Glucuronide
IPM62

5-[3-(DIMETHYLAMINO)PROPYL]-10,11-DIHYDRO-5H-DIBENZO[A,D][7]ANNULEN-5-OL
CAS:1159-03-1
Amitriptyline EP Impurity D Amitriptyline USP RC
ATL04

5-[3-(DIMETHYLAMINO)PROPYL]-10,11-DIHYDRO-5H-DIBENZO[A,D][7]ANNULEN-5-OL
CAS:1159-03-1
Nortriptyline EP Impurity D Amitriptyline USP RC
NTL04

5-[3-(DIMETHYLAMINO)PROPYLIDENE]-5H-DIBENZO[A,D]CYCLOHEPTEN-3-OL
CAS:30235-48-4
Cyclobenzaprine 3-Hydroxy Impurity
CBZ43

5-[4'-(AZIDOMETHYL)[1,1'-BIPHENYL]-2-YL]-2H-TETRAZOLE
CAS:152708-24-2
Valsartan Azide Impurity
VST43

5-[4'-[[2-Butyl-4-chloro-5-[(isopropyloxy)methyl]-1H-imidazol-1-yl]methyl] [1,1'-biphenyl]-2-yl]-2H-tetrazole
CAS:1332713-64-0
Losartan EP Impurity F Losartan Isopropyl Ether
LST06

5-[4'-[[2-Butyl-4-chloro-5-[(triphenyl methoxy)methyl]-1H-imidazol-1-yl]methyl] [1,1'-biphenyl]-2-yl]-2H-tetrazole
CAS:1006062-28-7
Losartan EP Impurity I O-Trityl Losartan Losarta
LST09

5-[4'-[[5-(Azidomethyl)-2-butyl-4-chloro-1H-imidazol-1-yl]methyl][1,1'-biphenyl]-2-yl]-2H-tetrazole
CAS:727718-93-6
Losartan Azide
LST50

5-[4-[[3-Chloro-4-[(3-fluorophenyl)methoxy]phenyl]amino]-6-quinazolinyl]-2-furanmethanol
CAS:320337-48-2
Lapatinib Hydroxymethyl Analog Lapatinib Desmesyl
LPT59

5-[4-[2-(N-Methyl-N-(2-pyridyl)amino)ethoxy]benzyl]thiazolidine-2,4-dione maleate
CAS:155141-29-0
Rosiglitazone maleate
RGT00M

5-[4-[4-(5-Cyano-1H-indol-3-yl)butyl]-1-piperazinyl]-2-benzofurancarboxamide
CAS:163521-12-8
Vilazodone (Base)
VZD00B

5-[4-[4-(5-Cyano-1H-indol-3-yl)butyl]-1-piperazinyl]-2-benzofurancarboxamide HCl
CAS:163521-08-2
Vilazodone (HCl)
VZD00H

5-[4-[4-(5-CYANO-1H-INDOL-3-YL)BUTYL]-1-PIPERAZINYL]-2-BENZOFURANCARBOXYLIC ACID
CAS:163521-19-5
Vilazodone Carboxylic Acid
VZD50 B

5-[4-[4-(5-CYANO-1H-INDOL-3-YL)BUTYL]-1-PIPERAZINYL]-2-BENZOFURANCARBOXYLIC ACID ETHYL ESTER
CAS:163521-11-7
Vilazodone Carboxylic Acid Ethyl Ester
VZD51B

5-[4-[4-(5-cyano-1h-indol-3-yl)butyl]-4-oxido-1-piperazinyl]-2-benzofurancarboxamide
CAS:1622425-52-8
Vilazodone N-Oxide
VZD60B

5-[5-(2-CHLOROACETYL)-2-ETHOXYPHENYL]-1,6-DIHYDRO-1-METHYL-3-PROPYL-7H-PYRAZOLO[4,3-D]PYRIMIDIN-7-ONE
CAS:1058653-74-9
Sildenafil Chloroacetyl Impurity Chlorodenafil
SDF37

5-[Acetyl(2,3-dihydroxypropyl)amino]-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
CAS:66108-95-0
Iohexol
IHX00

5-[Acetyl(2,3-dihydroxypropyl)amino]-N,N'-bis(2,3-dihydroxypropyl)diiodobenzene-1,3-dicarboxamide
CAS:1651211-78-7
Iohexol EP Impurity H Iohexol BP Impurity H
IHX08

5-[Acetyl(2,3-dihydroxypropyl)amino]-N,N'-bis(2,3dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
CAS:66108-95-0
Iodixanol EP Impurity A Iodixanol BP Impurity A
IDX01

5-[Acetyl(2,3-dihydroxypropyl)amino]-N-[2-(2,3-dihydroxypropoxy)-3-hydroxypropyl]-N'-(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity E Iohexol BP Impurity E
IHX05

5-[Acetyl(2,3-dihydroxypropyl)amino]-N-[2-(acetyloxy)-3-hydroxypropyl]-N'-(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity N Iohexol BP Impurity N
IHX14

5-[Acetyl(2,3-dihydroxypropyl)amino]-N-[3-(2,3-dihydroxypropoxy)-2-hydroxypropyl]-N'-(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity D Iohexol BP Impurity D
IHX04

5-[Acetyl(2,3-dihydroxypropyl)amino]-N-[3-(acetyloxy)-2-hydroxypropyl]-N'-(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity O Iohexol BP Impurity O
IHX15

5-[Acetyl[2-(2,3-dihydroxypropoxy)-3-hydroxypropyl]-amino]-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity C Iohexol 2-(2,3-Dihydroxypro
IHX03

5-[Acetyl[3-(2,3-dihydroxypropoxy)-2-hydroxypropyl]-amino]-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iohexol EP Impurity B Iohexol 3-(2,3-Dihydroxypro
IHX02

5-[Acetyl[3-[[3,5-bis[(2,3-dihydroxypropyl)carbamoyl]2,4,6-triiodophenyl] amino]-2-hydroxypropyl]amino]N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
CAS:171897-74-8
Iodixanol EP Impurity C Iodixanol USP RC C Deac
IDX03

5-[Acetyl[3-[acetyl[3-[[3-[3-[acetyl[3,5-bis[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodophenyl]amino]2-hydroxypropoxy]-2-hydroxypropyl]carbamoyl]-5-[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodophenyl]amino]2-hydroxypropyl] amino]-N,N'-bis(2,3-dihydroxy
Iodixanol EP Impurity H
IDX08

5-[Acetyl[3-[acetyl[3-carbamoyl-5-[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodophenyl]amino]-2-hydroxypropyl]amino]-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
CAS:255376-57-9
Iodixanol EP Impurity E Iodixanol USP RC E
IDX05

5-[Acetyl[3[acetyl[3,5-bis[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodo phenyl]amino]-2-hydroxypropyl]amino]-N-[3-(2,3-dihydroxypropoxy)-2-hydroxypropyl]-N'-(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
Iodixanol EP Impurity I Iodixanol Overalkylated I
IDX09

5-[Bis(2-chloroethyl)amino]-?-hydroxy-1-methyl-1H-benzimidazole-2-butanoic acid hydrochloride
CAS:1138238-08-0
Bendamustine M3 (Base)
BDM57B

5-[Bis(2-chloroethyl)amino]-?-hydroxy-1-methyl-1H-benzimidazole-2-butanoic acid hydrochloride
CAS:1258418-50-6
Bendamustine M3 (HCl)
BDM57H

5-{[(2-Hydroxyethoxy)methyl]amino}-2-imino-2,3-dihydro-4H-imidazol-4-one
Aciclovir Impurity 3
ACV63

5-{2 -Ethoxy-5-[(4-{[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4, 3-d]pyrimidin-5-yl)phenyl]sulfonyl}piperazino)sulfonyl]phenyl}-1-methyl-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-7-one
CAS:1346602-67-2
Sildenafil EP Impurity G Sildenafil Disulfonamide
SDF07

5-{4-[2-(5-Ethyl-2-pyridinyl) 2-hydroxyethoxy] benzylidene}-2,4-thiazolidinedione
Pioglitazone Didehydro Hydroxy Impurity
PGT32

5-{4-[2-(5-Ethyl-2-pyridinyl) ethoxy] benzyl}-2-imino-4-thiazolidine dione ("EPEBI")
CAS:105355-26-8
Pioglitazone Imino Analog Pioglitazone Related Co
PGT37

5-ACETAMIDO-1,3,4-THIADIAZOLE-2-SULFONIC ACID
CAS:827026-60-8
Acetazolamide EP Impurity E (Acid) Acetazolamide
AZA05A

5-ACETAMIDO-1,3,4-THIADIAZOLE-2-SULFONIC ACID POTASSIUM SALT
Acetazolamide EP Impurity E (Potassium) Acetazola
AZA05K

5-ACETAMIDO-1,3,4-THIADIAZOLE-2-SULFONYL CHLORIDE
CAS:32873-57-7
Acetazolamide Sulfonylchloride Impurity
AZA50

5-Acetamido-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide
CAS:31127-80-7
Iodixanol EP Impurity B Iodixanol USP RC A
IDX02

5-ACETYL-1,3-PHENYLENE BIS(DIMETHYLCARBAMATE)
CAS:81732-48-1
Bambuterol EP Impurity E
BBT05

5-ACETYL-10,11-DIHYDRO-5H-DIBENZO[B,F]AZEPINE
CAS:13080-75-6
Carbamazepine Impurity 2
CBM62

5-ACETYL-2-PROPYL-1H-IMIDAZOLE-4-CARBONITRILE
CAS:144690-06-2
Olmesartan Impurity 5
OLM65

5-Acetyl-3-[[(2R)-1-methyl-2-pyrrolidinyl]methyl]-1H-indole
CAS:167302-66-1
Eletriptan 5-Acetyl Impurity
ETT76B

5-Acetyl-3-chloro-10,11-dihydro-5H-dibenzo[b,f]azepine
CAS:25961-11-9
Carbamazepine Impurity 1
CBM61

5-Acetyl-N-((S)-1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)-1H-pyrazole-3-carboxamide
CAS:1297537-33-7
Darolutamide RC 1
DRL61

5-ACETYLOXY-4-HYDROXY-9,10-DIOXO-ANTHRACENE-2-CARBOXYLIC ACID
CAS:875535-35-6
Diacerein EP Impurity D 5-Acetyl Rhein Monoacety
DAR04

5-Acrylamido-4-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pentanoic acid
CAS:1839090-60-6
Ibrutinib Impurity 15 Ibrutinib M25
IBT65

5-ALPHA-ANDROST-16-EN-3-ALPHA-OL
CAS:1153-51-1
Androstenol (3-alpha) 3-alpha-Androstenol
PRM03

5-ALPHA-ANDROST-16-EN-3-BETA-OL
CAS:7148-51-8
Androstenol (3-beta) 3-beta-Androstenol
PRM04

5-ALPHA-ANDROST-16-EN-3-ONE
CAS:18339-16-7
Androstenone
PRM05

5-ALPHA-ANDROST-3,16,17-TRIONE
CAS:100024-35-9
Androstatrione
PRM02

5-AMINO-1,3,4-THIADIAZOLE-2-SULFONAMIDE
CAS:14949-00-9
Acetazolamide EP Impurity D (Base) Acetazolamide
AZA04B

5-Amino-1,3,4-thiadiazole-2-sulfonamide HCl
CAS:120208-98-2
Acetazolamide EP Impurity D (HCl) Acetazolamide U
AZA04H

5-AMINO-1,3,4-THIADIAZOLE-2-THIOL
CAS:2349-67-9
Acetazolamide EP Impurity G
AZA07

5-Amino-1-(4-(3-chloro-4-fluorophenylamino)-7-((S)-tetrahydrofuran-3-yloxy)quinazolin-6-yl)pyrrolidin-2-one
Afatinib Amino Pyrrolidinone Impurity
AFN56

5-Amino-1-(hydroxymethyl)cyclohexane-1,2,3,4-tetraol
CAS:83465-22-9
Voglibose Valiolamine Impurity Valiolamine
VGL04

5-AMINO-1-BETA-D-RIBOFURANOSYL-1H-IMIDAZOLE-4-CARBOXAMIDE
CAS:2627-69-2
Acadesine
ACD00

5-AMINO-1-CYCLOPROPYL-6,7,8-TRIFLUORO-1,4-DIHYDRO-4-OXO-3-QUINOLINECARBOXYLIC ACID
CAS:103772-14-1
Sparfloxacin RC 2
SFX62

5-Amino-1-cyclopropyl-7-((3R,5S)-3,5-dimethylpiperazin-1-yl)-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
CAS:110871-86-8
Sparfloxacin
SFX00

5-AMINO-1H-IMIDAZOLE-4-CARBOXAMIDE
CAS:72-40-2
Dacarbazine EP Impurity B (Base) Dacarbazine USP
DCB02B

5-AMINO-1H-IMIDAZOLE-4-CARBOXAMIDE HCL
CAS:360-97-4
Dacarbazine EP Impurity B (HCl) Dacarbazine USP R
DCB02H

5-AMINO-1H-PYRAZOLE-4-CARBOXAMIDE
CAS:5334-31-6
Allopurinol EP Impurity A (Base) Allopurinol USP
ALP01B

5-Amino-1H-pyrazole-4-carboxamide hemisulfate
CAS:27511-79-1
Allopurinol EP Impurity A (Hemisulfate) Allopurin
ALP01S

5-AMINO-2,4,6-TRIIODOBENZENE-1,3-DICARBOXYLIC ACID
CAS:35453-19-1
Iohexol EP Impurity K
IHX11

5-AMINO-2-(4-AMINO-1-OXOISOINDOLIN-2-YL)-5-OXOPENTANOIC ACID
CAS:2197420-75-8
Lenalidomide Impurity 27 Lenalidomide Impurity LN
LLM87

5-Amino-2-(4-nitro-1-oxoisoindolin-2-yl)-5-oxopentanoic acid
Lenalidomide Impurity 37
LLM97

5-AMINO-2-(PROPYLTHIO)PYRIMIDINE-4,6-DIOL
CAS:1482484-92-3
Ticagrelor Impurity 8 (Base)
TCG78B

5-Amino-2-(propylthio)pyrimidine-4,6-diol HCl
CAS:1549834-66-3
Ticagrelor Impurity 8 (HCl)
TCG78H

5-AMINO-2-FLUORO-N-METHYLBENZAMIDE HYDROCHLORIDE
CAS:1242840-35-2
Enzalutamide Impurity 26 (HCl)
EZL86H

5-AMINO-2-FLUOROISONICOTINAMIDE
CAS:1804146-12-0
Isonicotinamide RC 4
INM64

5-AMINO-2-HYDROXY-1,3-BENZENEDICARBOXYLIC ACID
CAS:859964-08-2
Mesalazine Dicarboxylic Acid
MSL33

5-AMINO-2-HYDROXY-3-(4-SULFOPHENYL)BENZOIC ACID
CAS:887256-40-8
Mesalazine EP Impurity P (Acid)
MSL16A

5-Amino-2-hydroxy-3-(4-sulfophenyl)benzoic acid disodium salt
Mesalazine EP Impurity P (Sodium)
MSL16N

5-AMINO-2-HYDROXYBENZOIC ACID
CAS:89-57-6
Mesalazine Mesalamine
MSL00

5-AMINO-4-(4-AMINO-1-OXOISOINDOLIN-2-YL)-5-OXOPENTANOIC ACID
CAS:2197414-57-4
Lenalidomide Impurity 26 Lenalidomide Impurity LN
LLM86

5-AMINO-4-(4-NITRO-1-OXOISOINDOLIN-2-YL)-5-OXOPENTANOIC ACID
CAS:1198299-72-7
Lenalidomide Impurity 36
LLM96

5-AMINO-6-CHLORO-2-(PROPYLTHIO)PYRIMIDIN-4-OL
Ticagrelor Impurity 10
TCG80

5-Amino-7-(3-aminopyrrolidin-1-yl)-1-cyclopropyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
CAS:112654-98-5
Sparfloxacin RC 1
SFX61

5-AMINO-N,N'-BIS(2,3-DIHYDROXYPROPYL)-2,4,6-TRIIODOBENZENE-1,3-DICARBOXAMIDE
CAS:76801-93-9
Iohexol EP Impurity J Iohexol USP RC B Ioversol
IHX10

5-Amino-N,N'-bis(2,3-dihydroxypropyl)diiodobenzene-1,3-dicarboxamide
CAS:1215856-35-1
Iohexol EP Impurity F Iohexol BP Impurity F
IHX06

5-Amino-N,N�-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodobenzene-1,3-dicarboxamide
CAS:60166-98-5
Iopamidol EP Impurity A Iopamidol USP RC A
IPD01

5-AMINO-N1-METHYL-1H-IMIDAZOLE-1,4-DICARBOXAMIDE
CAS:188612-53-5
Temozolomide RC 5
TMZ65

5-AMINOBENZO[C][1,2]OXABOROL-1(3H)-OL
CAS:947165-26-6
Tavaborole Impurity 10 Tavaborole 5-Amino Analog
TVB70

5-AMINOIMIDAZOLE-4-CARBOXAMIDE
CAS:360-97-4
Temozolomide EP Impurity A (Base) Dacarbazine EP
TMZ01B

5-AMINOIMIDAZOLE-4-CARBOXAMIDE HCL
CAS:72-40-2
Temozolomide EP Impurity A (HCl) Dacarbazine EP I
TMZ01H

5-Benzoyl-2,3-dihydro-1H-pyrrolizine-1-imine
Ketorolac 1-Imino Impurity
KTR46

5-BENZOYL-2,3-DIHYDRO-1H-PYRROLIZINE-1-ONE
CAS:113502-52-6
Ketorolac EP Impurity B Ketorolac USP RC C 1-Ket
KTR02

5-BENZYL-3,6-DIOXO-2-PIPERAZINEACETIC ACID
CAS:5262-10-2
Aspartame EP Impurity A Aspartame USP RC A
ASP01

5-BENZYL-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE
CAS:55142-78-4
Ticlodipine EP Impurity D Deschloro Ticdipine
TDP04B

5-BENZYL-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE HYDROCHLORIDE
CAS:54903-07-0
Ticlodipine EP Impurity D (HCl)
TDP04H

5-BENZYLIMIDAZOLIDINE-2,4-DIONE
CAS:3530-82-3
Hydantoin 5-Benzyl
HDT60

5-BENZYLPYRIMIDINE-2,4-DIAMINE
CAS:7319-45-1
Diaveridine Didemethoxy Impurity
DVD52

5-Bromo-1-(2-fluorophenyl)pentan-2-one
CAS:1373350-56-1
Prasugrel Impurity 4
PRS74

5-BROMO-2-(1-METHYL-1H-TETRAZOL-5-YL)PYRIDINE
CAS:380380-63-2
Tedizolid Impurity 2
TDZ62

5-BROMO-2-(2-METHYL-2H-TETRAZOL-5-YL)PYRIDINE
CAS:380380-64-3
Tedizolid Impurity 1
TDZ61

5-BROMO-2-(2H-TETRAZOL-5-YL)PYRIDINE
CAS:380380-60-9
Tedizolid Impurity 17
TDZ57

5-BROMO-2-CHLORO-N-CYCLOPENTYLPYRIMIDIN-4-AMINE
CAS:733039-20-8
Ribociclib RC 1
RCB61

5-BROMO-2-CHLOROBENZOIC ACID
CAS:21739-92-4
Dapagliflozin RC 10
DPG70

5-BROMO-2-CHLOROBENZOYL CHLORIDE
CAS:21900-52-7
Dapagliflozin RC 8
DPG68

5-BROMO-2-NITROPYRIDINE
CAS:39856-50-3
Ribociclib RC 3
RCB63

5-BROMO-3-METHYLPYRIDIN-2-AMINE
CAS:3430-21-5
Ozenoxacin RC 1
OZX61

5-BROMO-4-CHLORO-N-CYCLOPENTYLPYRIMIDIN-2-AMINE
CAS:1823404-28-9
Palbociclib RC 1
PBC61

5-BROMO-6-[(4,5-DIHYDRO-1H-IMIDAZOL-2-YL)AMINO]-1,4-DIHYDRO-2,3-QUINOXALINEDIONE
CAS:182627-95-8
Brimonidine 2,3-Dione Impurity
BRM50

5-BROMO-N-(4,5-DIHYDRO-1H-IMIDAZOL-2-YL)-6-QUINOXALINAMINE
CAS:59803-98-4
Brimonidine (Base)
BRM00B

5-BROMO-N-(4,5-DIHYDRO-1H-IMIDAZOL-2-YL)-6-QUINOXALINAMINE TARTRATE
CAS:70359-46-5
Brimonidine (Tartrate)
BRM00T

5-Bromo-N-1H-imidazol-2-yl-6-quinoxalinamine
CAS:151110-15-5
Brimonidine EP Impurity F 4,5-Didehydro Brimonidi
BRM06

5-BROMO-N2,N4-DICYCLOPENTYLPYRIMIDINE-2,4-DIAMINE
CAS:2444702-87-6
Palbociclib RC 2
PBC62B

5-Bromoethyl-2,3-Dihydrobenzofuran 5-(2-Bromoethyl)-2,3-dihydrobenzofuran
CAS:127264-14-6
Darifenacin 5-Bromoethyl Impurity
DRF31

5-BROMOISOBENZOFURAN-1(3H)-ONE
CAS:64169-34-2
Roxadustat RC 25
RXD85

5-Bromoquinazolin-6-ylthiourea N-(5-Bromo-6-quinoxalinyl)thiourea
CAS:842138-74-3
Brimonidine EP Impurity D Brimonidine USP RC B
BRM04

5-butyramido-2-hydroxybenzoic acid
CAS:93968-81-1
Mesalazine N-Butyryl Impurity
MSL34

5-C-[(Acetyloxy)methyl]-1,6-anhydro-1-C-[4-chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-�-L-idopyranose 2,3,4-triacetate
CAS:1298086-18-6
Ertugliflozin Tetraacetate
EGZ50

5-Carboxymethyl-2,3-Dihydrobenzofuran 2,3-Dihydro-5-benzofuranacetic acid
CAS:69999-16-2
Darifenacin 5-Carboxymethyl Impurity
DRF32

5-CHLORO HYDROCHLOROTHIAZIDE
CAS:5233-42-1
Hydrochlorothiazide 5-Chloro Impurity
HCT35

5-CHLORO-1-(2-FLUOROPHENYL)PENTAN-2-ONE
CAS:1056459-35-8
Prasugrel Impurity 8
PRS78

5-CHLORO-1-(PIPERIDIN-4-YL)-1,3-DIHYDRO-2H-BENZIMIDAZOL-2-ONE
CAS:53786-28-0
Domperidone EP Impurity A
DPD01

5-Chloro-1-[1-[3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl] piperidin-4-yl]-1,3-dihydro-2H-benzimidazol-2-one
CAS:57808-66-9
Domperidone (Base)
DPD00B

5-Chloro-1-[1-[3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl] piperidin-4-yl]-1,3-dihydro-2H-benzimidazol-2-one maleate
CAS:83898-65-1 99497-03-7
Domperidone (Maleate)
DPD00M

5-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
CAS:106847-40-9
Pefloxacin EP Impurity H Norfloxacin Impurity 1
PFX08

5-CHLORO-1-METHYL-4-NITRO-1H-IMIDAZOLE
CAS:4897-25-0
Azathioprine EP Impurity C Azathioprine BP Impuri
ATP03

5-CHLORO-2(3H)-BENZOXAZOLONE
CAS:95-25-0
Chlorzoxazone
CZX00

5-CHLORO-2,1,3-BENZOTHIADIAZOL-4-AMINE
CAS:30536-19-7
Tizanidine EP Impurity E Tizanidine USP RC A
TZN05

5-Chloro-2,3-dihydro-2-methyl-1H-dibenz[2,36,7]oxepino[4,5-c]pyrrol-1-one
CAS:934996-79-9
Asenapine Lactam Impurity
ANP52

5-CHLORO-2,3-DIPHENYLPYRAZINE
CAS:41270-66-0
Selexipag RC 2 Selexipag Chloro Pyrazine Impurity
SLX52

5-CHLORO-2,4(1H,3H)-PYRIMIDINEDIONE
CAS:1820-81-1
Fluorouracil EP Impurity E Fluorouracil BP Impuri
FUR05

5-Chloro-2-fluoro-N-(2-hydroxy-5-methoxyphenyl)benzamide
CAS:2514959-57-8
Amoxapine RC 2
AXP62

5-CHLORO-2-METHOXY-N-[2-[4-(PHOSPHONOOXY)PHENYL]ETHYL]BENZAMIDE
CAS:594854-55-4
Glyburide 4-Phosphonooxy Impurity Glibenclamide 4
GLB54

5-Chloro-2-methyl-2H-dibenz[2,36,7]oxepino[4,5-c]pyrrole
CAS:129385-60-0
Asenapine Tetradehydro Impurity
ANP54

5-CHLORO-3-(N-(1,2,3-TRIHYDROXYBUTYL)SULFINAMOYL)THIOPHENE-2-CARBOXAMIDE
Lornoxicam Impurity 7
LNX67

5-CHLORO-3-[(METHYLAMINO)SULFONYL]-2-THIOPHENECARBOXYLIC ACID
CAS:70374-36-6
Lornoxicam Impurity 8
LNX68

5-Chloro-3-[3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl]-1-[1-[3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl]piperidin-4-yl]-1,3-dihydro-2H-benzimidazol-2-one
CAS:1614255-34-3
Domperidone EP Impurity D
DPD04

5-Chloro-3-[4-(methylsulfonyl)phenyl]-[2,3'-bipyridine]-6'-carboxylic acid
CAS:349536-39-6
Etoricoxib 6-Carboxy Impurity
ECX51

5-Chloro-3-[4-(methylsulfonyl)phenyl]-[2,3'-bipyridine]-6'-methanol
CAS:349536-41-0
Etoricoxib 6-Hydroxymethyl Impurity
ECX52

5-Chloro-3-[4-(methylsulfonyl)phenyl]-2,3�-bipyridine
CAS:202409-31-2
Etoricoxib Desmethyl Impurity
ECX50

5-CHLORO-3-NITROPYRAZOLO[1,5-A]PYRIMIDINE
CAS:1363380-51-1
Larotrectinib CNPP Impurity
LTT50

5-CHLORO-3-SULFAMOYLTHIOPHENE-2-CARBOXAMIDE
Lornoxicam Impurity 4
LNX64

5-CHLORO-3-SULFAMOYLTHIOPHENE-2-CARBOXYLIC ACID
CAS:1017791-22-8
Lornoxicam Impurity 3
LNX63

5-CHLORO-3-SULFO-2-THIOPHENECARBOXYLIC ACID
CAS:187746-94-7
Lornoxicam Impurity 5
LNX65

5-Chloro-4-(2-imidazolin-2-ylamino)-2,1,3-benzothiadiazole monohydrochloride
CAS:64461-82-1
Tizanidine HCl
TZN00H

5-Chloro-4-(4-(3-(4-(7-chloroquinolin-4-yl)piperazin-1-yl)propyl)piperazin-1-yl)quinoline
CAS:918879-09-1
Piperaquine Impurity C
PPQ03

5-Chloro-6'-(hydroxymethyl)-3-(4-(methylsulfonyl)phenyl)-[2,3'-bipyridine] 1'-oxide
CAS:570394-08-0
Etoricoxib 6-Hydroxymethyl N1-Oxide
ECX54

5-Chloro-6'-methyl-3-[4-(methylsulfonyl)phenyl]-2,3'-bipyridine 1'-oxide 5-{5-Chloro-3-[4-(methylsulfonyl)phenyl]pyridine-2-yl}-2-methylpyridine-1-oxide
CAS:325855-74-1
Etoricoxib N1-Oxide
ECX56

5-Chloro-6-(2,3-dichlorophenoxy)-1H-benzimidazole-2-thiol
CAS:68828-69-3
Triclabendazole EP Impurity B
TCD02

5-CHLORO-6-(2,3-DICHLOROPHENOXY)-1H-BENZO[D]IMIDAZOL-2(3H)-ONE
CAS:1201920-88-8
Triclabendazole Keto Impurity Ketotriclabendazole
TCD51

5-CHLORO-6-(2,3-DICHLOROPHENOXY)-2-(METHYLSULFANYL)-1H-BENZIMIDAZOLE
CAS:68786-66-3
Triclabendazole
TCD00

5-Chloro-6-(2,3-dichlorophenoxy)-2-(methylsulfinyl)-1H-benzimidazole
CAS:100648-13-3
Triclabendazole EP Impurity A Triclabendazole Sul
TCD01

5-CHLORO-6-(2,3-DICHLOROPHENOXY)-2-(METHYLSULFONYL)-1H-BENZO[D]IMIDAZOLE
CAS:106791-37-1
Triclabendazole Sulfone
TCD50

5-CHLORO-6-HYDROXY-2(3H)-BENZOXAZOLONE
CAS:1750-45-4
Chlorzoxazone 6-Hydroxy Impurity
CZX56

5-Chloro-6�-methyl-3-(4-(methylsulfonyl)phenyl)-[2,3�-bipyridine] 1-1�-dioxide
Etoricoxib N,N-Dioxide
ECX55

5-Chloro-6�-methyl-3-[4-(methylsulfonyl)phenyl]-2,3�-bipyridine
CAS:202409-33-4
Etoricoxib
ECX00

5-CHLORO-7-IODOQUINOLIN-8-OL
CAS:130-26-7
Clioquinol
CQN00

5-Chloro-N-(((S)-3-(4-(2-hydroxy-3-oxomorpholino)phenyl)-2-oxooxazolidin-5-yl)methyl)thiophene-2-carboxamide
CAS:1160169-99-2
Rivaroxaban 2-Hydroxy 3-Oxo Impurity
RVR41

5-Chloro-N-(((S)-3-(4-(2-hydroxy-5-oxomorpholino)phenyl)-2-oxooxazolidin-5-yl)methyl)thiophene-2-carboxamide
CAS:1160169-96-9
Rivaroxaban 2-Hydroxy 5-Oxo Impurity
RVR42

5-Chloro-N-((4-(2-(5-chloro-2-methoxybenzamido)ethyl)phenyl)sulfonyl)-2-methoxybenzamide
Glyburide Impurity 3
GLB43

5-Chloro-N-(1-(3-methoxypropyl)piperidin-4-yl)-4-((2R,3S,4S,5R)-3,4,5-trihydroxy-6-(hydroxymethyl)-tetrahydro-2H-pyran-2-ylamino)-2,3-dihydrobenzofuran-7-carboxamide
Prucalopride-N-Galactopyranoside
PRC53

5-CHLORO-N-(2-CHLORO-4-NITROPHENYL)-2-HYDROXYBENZAMIDE
CAS:50-65-7
Niclosamide (Anhydrous)
NCS00A

5-chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide hydrate
CAS:73360-56-2
Niclosamide (Hydrate)
NCS00H

5-Chloro-N-(2-oxo-3-(4-(3-oxomorpholino)phenylamino)propyl)thiophene-2-carboxamide
CAS:1161719-52-3
Rivaroxaban Impurity 15
RVR75

5-Chloro-N-(3-(5-chlorothiophene-2-carboxamido)-2-hydroxypropyl)-N-(4-(3-oxomorpholino)phenyl)thiophene-2-carboxamide
CAS:1838133-00-8
Rivaroxaban Impurity 2 Rivaroxaban Diamide
RVR62

5-Chloro-N-(4,5-dihydro-1H-imidazol-2-yl)-6-quinoxalinamine
CAS:91147-46-5
Brimonidine EP Impurity H Brimonidine 5-Chloro An
BRM08

5-CHLORO-N-(4-(3-OXOMORPHOLINO)PHENYL)-N-((2-OXOOXAZOLIDIN-5-YL)METHYL)THIOPHENE-2-CARBOXAMIDE
Rivaroxaban Impurity 33
RVR93

5-CHLORO-N-(4-(3-OXOMORPHOLINO)PHENYL)-N-((2-OXOOXAZOLIDIN-5-YL)METHYL)THIOPHENE-2-CARBOXAMIDE
CAS:1838139-24-4
Rivaroxaban Impurity 9
RVR69

5-Chloro-N-[(2R)-2-hydroxy-3-{[4-(3-oxomorpholin-4-yl)phenyl]amino} propyl]thiophene-2-carboxamide
CAS:721401-53-2
Rivaroxaban Descarbonyl Impurity
RVR57

5-Chloro-N-[[(5R)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl] methyl]-2-thiophenecarboxamide
CAS:865479-71-6
Rivaroxaban EP Impurity A Rivaroxaban R-Isomer e
RVR01

5-Chloro-N-[[(5S)-2-oxo-3-[4-(3-hydroxy-5-oxo-4-Morpholinyl)phenyl]-5-oxazolidinyl]methyl]-2-thiophenecarboxamide
CAS:1159977-46-4
Rivaroxaban 3-Hydroxy Metabolite
RVR43

5-Chloro-N-[[(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl] methyl]-1-oxido-2-thiophenecarboxamide
CAS:2197189-38-9
Rivaroxaban Sulfoxide
RVR60

5-Chloro-N-[[(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl] methyl]-2-thiophenecarboxamide
CAS:366789-02-8
Rivaroxaban
RVR00

5-Chloro-N-[[(5S)-3-[4-[(2-hydroxyacetyl)(2-hydroxyethyl)amino]phenyl]-2-oxo-5-oxazolidinyl]methyl]-2-thiophenecarboxamide
CAS:1160170-00-2
Rivaroxaban Diol
RVR46

5-Chloro-N-[[(5S)-4-hydroxy-2-oxo-3-[4-(3-oxo-4-Morpholinyl)phenyl]-5-oxazolidinyl]methyl]-2-thiophenecarboxamide
CAS:1161719-51-2
Rivaroxaban 4-Hydroxy Metabolite Rivaroxaban Hydr
RVR44

5-Chloro-N-[4-[(5S)-5-[[[(5-chloro-2-thienyl)carbonyl]amino]methyl]-2-oxo-3-oxazolidinyl]phenyl]-N-[2-[2-oxo-2-[[[(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl) phenyl]-5-oxazolidinyl]methyl]amino]ethoxy]ethyl]-2-thiophenecarboxamide
CAS:1632463-24-1
Rivaroxaban EP Impurity J Rivaroxaban USP RC J R
RVR10

5-CHLORO-N-1H-IMIDAZOL-2-YL-2,1,3-BENZOTHIADIAZOL-4-AMINE
CAS:125292-34-4
Tizanidine Dehydro Impurity
TZN51

5-CHLORO-N-METHYLTHIOPHENE-2-CARBOXAMIDE
CAS:97799-98-9
Rivaroxaban Impurity 14 Rivaroxaban CMTCA Impurit
RVR74

5-CHLORO-N2-(2-ISOPROPOXY-5-METHYL-4-(PIPERIDIN-4-YL)PHENYL)-N4-(2-(ISOPROPYLSULFONYL)PHENYL)PYRIMIDINE-2,4-DIAMINE
CAS:1032900-25-6
Ceritinib
CRT00

5-Chloro-N4-(2-(dimethylphosphoryl)phenyl)-N2-(2-methoxy-4-(4-(4-methylpiperazin-1-yl)piperidin-1-yl)phenyl)pyrimidine-2,4-diamine
CAS:1197953-54-0
Brigatinib
BRG00B

5-Chlorocarbonyl-10,11-dihydro-5H-dibenz[b,f]azepine
CAS:33948-19-5
Carbamazepine Dihydro Chlorocarbonyl Impurity Imi
CBM46

5-CHLOROPYRAZOLO[1,5-A]PYRIMIDINE
CAS:29274-24-6
Larotrectinib CPP Impurity
LTT51

5-CHLOROQUINOLIN-8-OL
CAS:130-16-5
Clioquinol EP Impurity A Dermofungin
CQN01

5-CHLOROTHIOPHENE-2-CARBOXAMIDE
CAS:22353-82-8
Rivaroxaban Impurity 18
RVR78

5-CHLOROTHIOPHENE-2-CARBOXYLIC ACID
CAS:24065-33-6
Rivaroxaban EP Impurity F Rivaroxaban CTCA Impuri
RVR06

5-CYCLOBUTYL-5-PHENYLIMIDAZOLIDINE-2,4-DIONE
CAS:125650-44-4
Hydantoin 5-Cyclobutyl 5-Phenyl
HDT62

5-Diazenyl-1H-imidazole-4-carboxamide
CAS:1314929-56-0
Dacarbazine EP Impurity C
DCB03

5-Difluoromethoxy-2-[[(3,4-dimethoxy)-2-pyridyl] methyl sulfonyl]-1H-benzimidazole
CAS:127780-16-9
Pantoprazole EP Impurity A Pantoprazole USP RC A
PTP01

5-Difluoromethoxy-2-[[(3,4-dimethoxy)-2-pyridyl] methylsulfanyl]-1H-benzimidazole
CAS:102625-64-9
Pantoprazole EP Impurity B Pantoprazole USP RC B
PTP02

5-Difluoromethoxy-2-[[(3,4-dimethoxy)-2-pyridyl]methyl sulfinyl] -1H-benzimidazole
CAS:102625-70-7
Pantoprazole
PTP00B

5-ETHENYL-2-OXOPYRROLIDINE-3-CARBOXAMIDE
Vigabatrin EP Impurity C
VGB03

5-ETHYL 7-METHYL 6-(2-CHLOROPHENYL)-3,4,6,7-TETRAHYDRO-8-METHYL-2H-1,4-BENZOXAZINE-5,7-DICARBOXYLATE
CAS:496024-43-2
Amlodipine Impurity 2
AML62

5-ETHYL 7-METHYL 6-(2-CHLOROPHENYL)-8-METHYL-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-5,7-DICARBOXYLATE
Amlodipine Intermediate 1
AML81

5-ETHYL-10-METHOXY-5H-DIBENZO[B,F]AZEPINE
CAS:15882-79-8
Oxcarbazepine EP Impurity G
OXC07

5-ETHYL-3-(1-METHYLPIPERIDIN-4-YL)-1H-INDOLE
CAS:2074613-76-4
Naratriptan RC 5 (Base)
NRT65B

5-Ethyl-3-(1-methylpiperidin-4-yl)-1H-indole hydrochloride
CAS:2074613-77-5
Naratriptan RC 5 (HCl)
NRT65H

5-ETHYL-3-[[(2R)-1-METHYL-2-PYRROLIDINYL]METHYL]-1H-INDOLE
CAS:209682-64-4
Eletriptan Impurity F
ETT66B

5-Ethyl-5-phenyl-2-[(1RS)-1-phenylpropyl]dihydropyrimidine-4,6(1H,5H)-dione
CAS:1189504-46-8
Primidone EP Impurity F Phenylpropyl Primidone (U
PMD06

5-ETHYL-5-PHENYLDIHYDROPYRIMIDINE-4,6(1H,5H)-DIONE
CAS:125-33-7
Primidone
PMD00

5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid
CAS:14698-29-4
Oxolinic acid
OXN00

5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid ethyl ester
Oxolinic Acid Ethyl Ester
OXN52

5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid isopropyl ester
Oxolinic Acid Isopropyl Ester
OXN53

5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid methyl ester
CAS:50332-56-4
Oxolinic Acid Methyl Ester
OXN51

5-ETHYLIMIDAZOLIDINE-2,4-DIONE
CAS:15414-82-1
Hydantoin 5-Ethyl
HDT66

5-FLUORO-1,3-DIHYDRO-1-HYDROXY-2,1-BENZOXABOROLE
CAS:174671-46-6
Tavaborole
TVB00

5-Fluoro-1-((2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl)-4-((3S,4R)-3,5,6-trihydroxy-2-oxo-4-((2S,3R,4S,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)-tetrahydro-2H-pyran-2-yloxy)hexylamino)pyrimidin-2(1H)-one
Emtricitabine Amadori Rearrangement Product
EMT 70

5-Fluoro-1-((2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl)-4-((hydroxymethyl)amino)pyrimidin-2(1H)-one
Emtricitabine N-Hydroxymethyl
EMT72

5-Fluoro-1-((2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl)-4-(methyleneamino)pyrimidin-2(1H)-one
Emtricitabine Imine
EMT68

5-Fluoro-1-(5-fluorobenzo[c][1,2]oxaborol-1(3H)-yloxy)-1,3-dihydrobenzo[c][1,2]oxaborole
Tavaborole Impurity 15
TVB75

5-Fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolane-5-yl]uracil cis 5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione
CAS:145986-11-4
Emtricitabine 5-Fluorouracil Analog (USP) Emtrici
EMT74

5-Fluoro-1-[(2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione (2S-cis)-5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione
CAS:145281-92-1
Emtricitabine FTU Impurity
EMT66

5-Fluoro-2,4(1H,3H)pyrimidinedione
CAS:51-21-8
Fluorouracil Flucytosine EP Impurity A Emtricita
FUR00

5-FLUORO-2-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)BENZYL ACETATE
Tavaborole Impurity 18
TVB78

5-Fluoro-2-[4-fluoro-2-hydroxymethylphenyl]phenylmethanol
Tavaborole Impurity 17
TVB77

5-FLUORO-2-METHOXY-1-NAPHTHALENOL
CAS:741693-89-0
Duloxetine Impurity 3
DLX63

5-FLUORO-2-NAPHTHALENOL
CAS:741693-88-9
Duloxetine Impurity 5
DLX65

5-FLUORO-3-(PIPERIDIN-4-YL)BENZO[D]ISOXAZOLE
CAS:84163-64-4
Risperidone RC 19 (Base)
RSP89B

5-FLUORO-3-(PIPERIDIN-4-YL)BENZO[D]ISOXAZOLE HYDROCHLORIDE
CAS:84163-16-6
Risperidone RC 19 (HCl)
RSP89H

5-FLUORO-3-OXO-3,4-DIHYDROPYRAZINE-2-CARBOXAMIDE
CAS:259794-01-9
Favipiravir 5-Fluoro Analog
FVP50

5-FLUOROINDOLIN-2-ONE
CAS:56341-41-4
Sunitinib Impurity 2
SNT62

5-FLUORONAPHTHALEN-1-OL
CAS:61761-32-8
Duloxetine Impurity 6
DLX66

5-Fluoropyrimidin-2,4(1H,3H)-dione
CAS:51-21-8
Emtricitabine IP Impurity F 5-Fluoro Uracil Fluo
EMT56

5-FLUOROPYRIMIDINE-2,4(1H,3H)-DIONE
CAS:51-21-8
Flucytosine EP Impurity A Fluorouracil 5-Fluoro
FCT01

5-FORMYL-2,4-DIMETHYL-1H-PYRROLE-3-CARBOXYLIC ACID
CAS:253870-02-9
Sunitinib Impurity 1
SNT61

5-FORMYL-2-METHOXYBENZENESULFONAMIDE
CAS:105764-07-6
Tamsulosin EP Impurity E
TMS05

5-Hydroxy-1,4-bis(2-(2-hydroxyethylamino)ethylamino)anthracene-9,10-dione
CAS:80189-44-2
Mitoxantrone EP Impurity B 1-Deshydroxy Mitoxantr
MXT02

5-Hydroxy-1-(4-(3-chloro-4-fluorophenylamino)-7-((S)-tetrahydrofuran-3-yloxy)quinazolin-6-yl)pyrrolidin-2-one
Afatinib Hydroxy Pyrrolidinone Impurity
AFN57

5-Hydroxy-2-(2-methyl-3-(trifluoromethyl)phenylamino)nicotinic acid
CAS:75369-61-8
Flunixin 5-Hydroxy Impurity
FNX55

5-Hydroxy-2-(4-hydroxyphenyl)-7-((2S,3S,4S,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)-tetrahydro-2H-pyran-2-yloxy)-4H-chromen-4-one
CAS:578-74-5
Apigenin 7-Glucoside
APG56

5-Hydroxy-3,4-dihydroisoquinoline-2(1H)-carboxamidine
CAS:70746-05-3
Debrisoquine 5-Hydroxy Impurity
DQN55

5-HYDROXY-3,4-DIHYDRONAPHTHALEN-1(2H)-ONE
CAS:28315-93-7
Levobunolol RC 3
LBN63

5-HYDROXY-3,4-DIHYDROQUINOLIN-2(1H)-ONE
CAS:30389-33-4
Carteolol EP Impurity B
CRH02

5-HYDROXY-3,4-DIHYDROQUINOLIN-2(1H)-ONE
CAS:30389-33-4
Aripiprazole Impurity 12
ARP92

5-HYDROXY-3-MERCAPTOPENTAN-2-ONE
CAS:15678-01-0
Thiamine Impurity 6
THM56

5-HYDROXY-4-(4-(METHYLSULFONYL)PHENYL)-3-PHENYLFURAN-2(5H)-ONE
CAS:185147-17-5
Rofecoxib RC 2 5-Hydroxy Rofecoxib
RCX62

5-HYDROXY-5-METHYLIMIDAZOLIDINE-2,4-DIONE
CAS:10045-58-6
Hydantoin 5-Hydroxy 5-Methyl
HDT68

5-Hydroxy-9-methyl-2-propyl-1H-pyrazolo[1,2-a][1,2,4]benzotriazine-1,3(2H)-dione
Azapropazone Impurity B
AZZ02

5-HYDROXY-N-(PIPERIDIN-2-YLMETHYL)-2-(2,2,2-TRIFLUOROETHOXY)BENZAMIDE
CAS:83526-33-4
Flecainide meta-O-Destrifluoroethyl Impurity
FCN51

5-HYDROXYIMIDAZOLIDINE-2,4-DIONE
CAS:29410-13-7
Hydantoin 5-Hydroxy
HDT67

5-HYDROXYMETHYL-N-PHENYL-2-1H-PYRIDONE
CAS:887406-49-7
Pirfenidone 5-Hydroxymethyl Impurity
PFD51

5-Imino-4,4-dimethyl-1-[4-nitro-3-(trifluoromethyl)phenyl]imidazolidin-2-one
CAS:63612-49-7
Nilutamide EP Impuirty A
NLD01

5-Isopropyl 3-methyl 2-cyano-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
CAS:75530-68-6
Nilvadipine
NVP00

5-Isopropyl 3-methyl 2-cyano-6-methyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate
Nilvadipine Dehydro Impurity
NVP50

5-METHOXY-1,3-DIHYDRO-BENZOIMIDAZOL-2-ONE
CAS:2080-75-3
Omeprazole Imidazolinone Impurity
OMP60

5-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-((4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfonyl)-1H-benzo[d]imidazole
CAS:1346599-74-3
Esomeprazole RC 5
EOM65B

5-Methoxy-1-[4-(trifluoromethyl)phenyl]-1-pentanone-O-(2-aminoethyl]oxime maleic acid monoamide
CAS:1076198-14-5
Fluvoxamine Maleic Acid Monoamide
FVX53

5-METHOXY-1-[4-(TRIFLUOROMETHYL)PHENYL]PENTAN-1-ONE
CAS:61718-80-7
Fluvoxamine EP Impurity D Fluvoxketone
FVX04

5-METHOXY-1-METHYL-1H-BENZIMIDAZOLE-2-THIOL
CAS:58764-00-4
Omeprazole N1-Methyl 5-Methoxy Thiol Impurity
OMP55

5-METHOXY-1H-BENZIMIDAZOLE-2-THIOL
CAS:37052-78-1
Esomeprazole EP Impurity A Omeprazole EP Imp. A
EOM01

5-METHOXY-1H-BENZIMIDAZOLE-2-THIOL
CAS:37052-78-1
Omeprazole EP Impurity A Esomeprazole EP Impurity
OMP01

5-METHOXY-1H-BENZO[D]IMIDAZOLE
CAS:4887-80-3
Esomeprazole RC 4
EOM64B

5-Methoxy-2-((4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfinyl)-1-nitroso-1H-benzo[d]imidazole
Omeprazole N-Nitroso Impurity Nitroso Omeprazole
OMP48

5-Methoxy-2-((R)-((4-methoxy-3,5-dimethyl-2-pyridinyl) methyl)sulfinyl)-1H-benzimidazole
CAS:119141-89-8
Omeprazole R-Isomer (Amine) EsOmeprazole Magnesiu
OMP41A

5-Methoxy-2-((R)-((4-methoxy-3,5-dimethyl-2-pyridinyl) methyl)sulfinyl)-1H-benzimidazole potassium salt
Omeprazole R-Isomer (K) EsOmeprazole Magnesium Im
OMP41K

5-Methoxy-2-((R)-((4-methoxy-3,5-dimethyl-2-pyridinyl) methyl)sulfinyl)-1H-benzimidazole sodium salt
CAS:161796-77-6
Omeprazole R-Isomer (Na) EsOmeprazole Magnesium E
OMP41N

5-METHOXY-2-(4-METHOXY-3,5-DIMETHYLPYRIDIN-2-YL)-1H-BENZIMIDAZOLE
Omeprazole Desmethylsulfinyl Impurity EsOmeprazol
OMP50

5-METHOXY-2-(4-METHOXY-3,5-DIMETHYLPYRIDIN-2-YL)-1H-BENZIMIDAZOLE
EsOmeprazole Desmethylsulfinyl Impurity Omeprazol
EOM50

5-Methoxy-2-[(S)-[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]sulfinyl] benzimidazole magnesium salt (21)
CAS:161973-10-0
Esomeprazole (Magnesium)
EOM00X

5-Methoxy-2-[(S)-[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]sulfinyl] benzimidazole magnesium salt (21), trihydrate
CAS:217087-09-7
Esomeprazole (Magnesium Trihydrate)
EOM00M

5-Methoxy-2-[[(3,5-dimethylpyridin-2-yl) methyl] sulfinyl]-1H-benzimidazole
CAS:110374-16-8
Esomeprazole EP Impurity B Omeprazole EP Imp. B
EOM02

5-Methoxy-2-[[(3,5-dimethylpyridin-2-yl) methyl] sulfinyl]-1H-benzimidazole
CAS:110374-16-8
Omeprazole EP Impurity B Esomeprazole EP Impurity
OMP02

5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfanyl]-1-methyl-1H-benzimidazole supplied as pure form (not mixture of 5-methoxy & 6-methoxy analogs)
CAS:2243644-60-0
Omeprazole Sulfide N1-Methyl 5-Methoxy Analog
OMP45

5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1-methyl-1H-benzimidazole supplied as pure form (not mixture of 5-methoxy & 6-methoxy analogs)
CAS:89352-76-1
Omeprazole N-Methyl 5-Methoxy Analog
OMP35

5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole, magnesium salt (21)
CAS:95382-33-5
Omeprazole Magnesium
OMP00M

5-METHOXY-2-[[(4-METHOXY-3,5-DIMETHYL-2-PYRIDINYL)METHYL]THIO]-1H-BENZIMIDAZOLE N-OXIDE
CAS:142885-92-5
Omeprazole RC 11 Omeprazole Sulfide Pyridine-N-Ox
OMP71

5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl) methyl]sulfonyl]-1H-benzimidazole
CAS:88546-55-8
Omeprazole EP Impurity D Esomeprazole EP Impurity
OMP04

5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl) methyl]sulfonyl]-1H-benzimidazole
CAS:88546-55-8
Esomeprazole EP Impurity D Omeprazole EP Imp. D
EOM04

5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfanyl]-1H-benzimidazole
CAS:73590-85-9
Omeprazole EP Impurity C Esomeprazole EP Impurity
OMP03

5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfanyl]-1H-benzimidazole
CAS:73590-85-9
Esomeprazole EP Impurity C Omeprazole EP Imp. C
EOM03

5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl]-1H-benzimidazole
CAS:73590-58-6
Omeprazole
OMP00

5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl]-1H-benzimidazole N-Oxide
CAS:176219-04-8
Esomeprazole EP Impurity E Omeprazole EP Imp. E
EOM05

5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl]-1H-benzimidazole N-Oxide
CAS:176219-04-8
Omeprazole EP Impurity E Esomeprazole EP Impurity
OMP05

5-Methoxy-2-methyl-1H-indole-3-acetic acid
CAS:2882-15-7
Indomethacin EP Impurity B Indomethacin USP RC A
IDM02

5-Methoxy-2-phenoxybenzenamine
CAS:76838-72-7
Iguratimod Impurity 6
ITM66

5-METHOXY-3-METHYL-1-PHENYL-1H-PYRAZOLE
CAS:27349-35-5
Edaravone Impurity 8
ERV58

5-METHOXYPYRIMIDINE-2,4(1H,3H)-DIONE
CAS:6623-81-0
Fluorouracil EP Impurity D Fluorouracil BP Impuri
FUR04

5-METHYL-[1,2,4]TRIAZOLO[1,5-A]PYRIMIDIN-7-OL
CAS:2503-56-2
Trapidil EP Impurity A
TRL01

5-METHYL-1,3,4-OXADIAZOLE-2-CARBOXYLIC ACID
CAS:518048-06-1
Raltegravir Oxadiazole Acid
RGV54A

5-METHYL-1,3,4-OXADIAZOLE-2-CARBOXYLIC ACID POTASSIUM SALT
CAS:888504-28-7
Raltegravir Oxadiazole Potassium
RGV54K

5-METHYL-1,3,4-THIADIAZOL-2-THIOL
CAS:29490-19-5
Cefazolin EP Impurity E
CZL05

5-METHYL-2-((2-NITROPHENYL)AMINO)-3-THIOPHENECARBONITRILE
CAS:138564-59-7
Olanzapine EP Impurity A Olanzapine USP RC A Ola
OLZ01

5-METHYL-2-[(2RS)-2-METHYLBUTYL]PHENOL
Amylmetacresol EP Impurity C
ASL03

5-METHYL-2-NITROPHENOL
CAS:700-38-9
Levofloxacin Impurity 23
LFX83

5-METHYL-2-PENTYLCYCLOHEXANONE
CAS:1357600-49-7
Amylmetacresol EP Impurity G
ASL07

5-METHYL-2-PENTYLPHENOL
CAS:1300-94-3
Amylmetacresol
ASL00

5-Methyl-3,4-dihydro-2H-pyrido[4,3-b]indol-1(5H)-one
CAS:122852-75-9
Alosetron USP RC A
ALN21

5-METHYL-3,4-DIPHENYLISOXAZOLE
CAS:37928-17-9
Valdecoxib RC 2
VXB62

5-METHYL-3-PHENYLISOXAZOLE-4-CARBOXYLIC ACID
CAS:1136-45-4
Oxacillin EP Impurity C
OXL03A

5-METHYL-4,5,6,7-TETRAHYDROTHIAZOLO[5,4-C]PYRIDINE
CAS:259809-24-0
Edoxaban RC 1
EDX71

5-METHYL-4,5,6,7-TETRAHYDROTHIAZOLO[5,4-C]PYRIDINE-2-CARBOXYLIC ACID
CAS:758685-72-2
Edoxaban RC 2 (Base)
EDX72B

5-METHYL-4,5,6,7-TETRAHYDROTHIAZOLO[5,4-C]PYRIDINE-2-CARBOXYLIC ACID HYDROCHLORIDE
CAS:720720-96-7
Edoxaban RC 2 (HCl)
EDX72H

5-METHYL-4H-1,2,4-TRIAZOLE-3-CARBOXYLIC ACID
CAS:7169-98-4
Raltegravir RC 4
RGV64

5-METHYL-5-PHENYLIMIDAZOLIDINE-2,4-DIONE
CAS:6843-49-8
Hydantoin 5-Methyl 5-Phenyl
HDT70

5-Methyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid
Oxolinic Acid EP Impurity C Oxolinic Acid N-Methy
OXN03

5-Methyl-N,N-bis(1-methylethyl)-?-phenyl-2-(phenylmethoxy)-benzenepropanamine
CAS:389068-22-8
Tolterodine Impurity 6
TTR66

5-METHYL-N-(4-METHYLPHENYL)ISOXAZOLE-4-CARBOXAMIDE
CAS:724429-16-7
Leflunomide EP Impurity G
LFM07

5-Methyl-N-[2-(trifluoromethyl)phenyl]-4-isoxazolecarboxamide
CAS:1403564-06-6
Leflunomide EP Impurity F Leflunomide otho-Isomer
LFM06

5-METHYL-N-[3-(TRIFLUOROMETHYL)PHENYL]-4-ISOXAZOLECARBOXAMIDE
CAS:61643-23-0
Leflunomide EP Impurity C Leflunomide USP RC C
LFM03

5-Methyl-N-[4-(trifluoromethyl)phenyl]-4-isoxazolecarboxamide
CAS:75706-12-6
Leflunomide
LFM00

5-Methyl-N-phenyl-2-1H-pyridone
CAS:53179-13-8
Pirfenidone
PFD00

5-METHYLBENZO[D][1,3]DIOXOLE
CAS:7145-99-5
Tadalafil Impurity 2
TLF62

5-METHYLIMIDAZOLIDINE-2,4-DIONE
CAS:616-03-5
Hydantoin 5-Methyl
HDT69

5-METHYLISOXAZOL-3-AMINE
CAS:1072-67-9
Sulfamethoxazole EP Impurity C Sulfamethoxazole U
SMZ03

5-METHYLISOXAZOLE-4-CARBOXYLIC ACID
CAS:42831-50-5
Leflunomide EP Impurity D
LFM04

5-METHYLPYRAZINE-2-CARBONITRILE
CAS:98006-91-8
Pyrazinamide 2-Carbonitrile 5-Methyl Impurity
PZA50

5-Methylpyridin-2(1H)-one 2-Hydroxy-5-methylpyridine
CAS:1003-68-5
Pirfenidone EP Impurity B
PFD02

5-Methylpyridin-2-amine 2-Amino-5-methylpyridine
CAS:1603-41-4
Pirfenidone EP Impurity A
PFD01

5-METHYLPYRIMIDINE-2,4(1H,3H)-DIONE
CAS:65-71-4
Stavudine EP Impurity A Zidovudine EP Impurity C
STV01

5-METHYLPYRIMIDINE-2,4(1H,3H)-DIONE
CAS:65-71-4
Zidovudine EP Impurity C Zidovudine USP RC C Thy
ZDV03

5-NITRO-2-(PROPYLTHIO)PYRIMIDINE-4,6-DIOL
CAS:145783-13-7
Ticagrelor Impurity 7
TCG77

5-NITROBENZENE-1,3-DICARBOXYLIC ACID
CAS:618-88-2
Glycopyrrolate EP Impurity O Glycopyrrolate USP R
GPB15

5-NITROFURAN-2-CARBOXYLIC ACID
CAS:645-12-5
Nitrofurantoin Nitrofurate Impurity Nitrofuroic A
NFR50

5-NITROSOPYRIMIDINE-2,4,6-TRIAMINE
CAS:1006-23-1
Triamterene EP Impurity A Triamterene USP RC A N
TTN01

5-Nitrothiazole-2-amine 2-Amino-5-nitrothiazole
CAS:121-66-4
Nitazoxanide USP RC A
NTZ21

5-NITROTHIOPHENE-2-CARBALDEHYDE
CAS:4521-33-9
Mefloquine RC 1
MFQ61

5-O,12-Didemethyl-12-ethyl-22,23-dihydroavermectin A1a
Ivermectin EP Impurity E 12-Demethyl 12-Ethyl Ive
IVM05

5-O,12-Didemethyl-25-de(1-methylpropyl)-12-ethyl-25-(1-methylethyl)-22,23-dihydroavermectin A1a
Ivermectin EP Impurity F 12-Demethyl 12-Ethyl Ive
IVM06

5-O-DEMETHYL-22,23-DIHYDRO-AVERMECTIN A1A
CAS:71827-03-7
Ivermectin B1a Avermectin B1a Dihydro Analog
IVMB1A

5-O-Demethyl-25-de(1-methylpropyl)-25-(1-methylethyl)-22,23-dihydroavermectin A1a
CAS:70209-81-3
Ivermectin B1b
IVMB1B

5-O-Demethyl-25-de(1-methylpropyl)-25-(1-methylethyl)avermectin A1a
CAS:65195-56-4
Ivermectin EP Impurity B Avermectin B1b Abamecti
IVM02

5-O-Demethyl-25-de(1-methylpropyl)-25-(1-methylethyl)avermectin A1a (> 95%)
CAS:65195-56-4
Avermectin B1b Abamectin B1b Ivermectin EP Impur
AVMB1B

5-O-Demethyl-28-oxo-22,23-dihydroavermectin A1a
CAS:102190-55-6
Ivermectin EP Impurity D 28-Oxo Ivermectin B1a
IVM04

5-O-Demethylavermectin A1a
CAS:65195-55-3
Ivermectin EP Impurity A Avermectin B1a Abamecti
IVM01

5-O-Demethylavermectin A1a (> 80%) and 5-O-demethyl-25-de(1-methylpropyl)-25-(1-methylethyl)avermectin A1a (< 20%) Avermectin B1a (> 80%) and Avermectin B1b (< 20%)
CAS:71751-41-2
Avermectin B1 Abamectin B1
AVM00

5-O-Demethylavermectin A1a (> 90%) Avermectin B1a (> 90%)
CAS:65195-55-3
Avermectin B1a Abamectin B1a Ivermectin EP Impur
AVMB1A

5-P-TOLYL-3-(TRIFLUOROMETHYL)-1H-PYRAZOLE
CAS:219986-64-8 948293-46-7
Celecoxib Impurity 10
CLC60

5-PENTYLBENZENE-1,3-DIOL
CAS:500-66-3
Olivetol
OVT00

5-PHENOXYISOBENZOFURAN-1(3H)-ONE
CAS:57830-14-5
Roxadustat RC 26
RXD86

5-PHENYL-1H-PYRROLE-3-CARBALDEHYDE
CAS:56448-22-7
Vonoprazan RC 7
VPZ67B

5-PHENYL-1H-TETRAZOLE
CAS:18039-42-4
Losartan RC 7
LST67

5-PHENYLIMIDAZOLIDINE-2,4-DIONE
CAS:89-24-7
Hydantoin 5-Phenyl
HDT71

5-Prop-2-en-1-ylidene-10,11-dihydro-5H-dibenzo[a,d][7]annulene
CAS:24755-73-5
Nortriptyline EP Impurity H
NTL08

5-Propoxy-1H-benzo[d]imidazol-2-amine
CAS:1239340-33-0
Oxibendazole Amino Impurity (Base)
OBZ50B

5-Propoxy-1H-benzo[d]imidazol-2-amine hydrochloride
CAS:1538624-34-8
Oxibendazole Amino Impurity (HCl)
OBZ50H

5-tert-Butyl 1-methyl 2-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioate
CAS:79640-68-9
Methotrexate RC 1
MTX61

5-tert-Butyl 1-methyl 2-(4-(methylamino)benzamido)pentanedioate
CAS:95485-08-8
Methotrexate RC 2
MTX62

5-TERT-BUTYL-2-METHOXYBENZALDEHYDE
CAS:85943-26-6
Maropitant TBMB Impurity
MPN55

5-Trityl-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-ylboronic acid
CAS:601525-80-8
Prasugrel Impurity 1
PRS71

5-TRITYL-4,5,6,7-TETRAHYDROTHIENO[3,2-C]PYRIDINE
CAS:109904-25-8
Prasugrel Impurity 2
PRS72

5-TRITYL-5,6,7,7A-TETRAHYDROTHIENO[3,2-C]PYRIDIN-2(4H)-ONE
CAS:109904-26-9
Prasugrel Impurity 6
PRS76

5a-Cholest-7-en-3�-ol
CAS:80-99-9
Cholesterol EP Impurity A Lathosterol
CRX01

5a-Cholesta-7,24-dien-3�-ol
CAS:651-54-7
Cholesterol EP Impurity C
CRX03

5H-DIBENZ[B,F]AZEPIN-2-OL
CAS:81861-18-9
Carbamazepine Impurity 8 2-Hydroxy Iminostilbene
CBM68

5H-DIBENZO[A,D][7]ANNULENE
CAS:256-81-5
Cyproheptadine EP Impurity A Cyproheptadine USP R
CHT01

5H-Dibenzo[b,f]azepin-5-ylcarbonyl)urea
CAS:1219170-51-0
Carbamazepine EP Impurity C Carbamazepine USP Imp
CBM03

5H-DIBENZO[B,F]AZEPINE
CAS:256-96-2
Carbamazepine EP Impurity D Carbamazepine USP RC
CBM04

5H-DIBENZO[B,F]AZEPINE
CAS:256-96-2
Oxcarbazepine EP Impurity E Iminostilbene Carbam
OXC05

5H-DIBENZO[B,F]AZEPINE-10,11-DIONE
CAS:19579-83-0
Oxcarbazepine EP Impurity D Dibenzazepine-10,11-D
OXC04

5H-DIBENZO[B,F]AZEPINE-5-CARBONYL BROMIDE
CAS:40421-05-4
Carbamazepine N-Bromocarbonyl Impurity
CBM56

5H-DIBENZO[B,F]AZEPINE-5-CARBONYL CHLORIDE
CAS:33948-22-0
Carbamazepine EP Impurity F Carbamazepine USP Imp
CBM06

5H-DIBENZO[B,F]AZEPINE-5-CARBOXAMIDE
CAS:298-46-4
Oxcarbazepine EP Impurity A Carbamazepine
OXC01

5H-DIBENZO[B,F]AZEPINE-5-CARBOXAMIDE
CAS:298-46-4
Carbamazepine (Anhydrous) Oxcarbazepine EP Impuri
CBM00A

5H-Dibenzo[b,f]azepine-5-carboxamide dihydrate
CAS:85756-57-6
Carbamazepine (Dihyadrate) Oxcarbazepine EP Impur
CBM00D

5H-Imidazo[4,5-d][1,2,3]triazin-4-olate sodium salt
CAS:1797817-35-6
Hypoxanthine 2-Aza Impuirty (Sodium) Dacarbazine
HPX52N

5�,20-Epoxy-1,7a,10�-trihydroxy-9-oxotax-11-ene-2a,4,13a-triyl 4-acetate 2-benzoate 13-[(2R,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-3-henylpropanoate]
CAS:153381-68-1
Docetaxel EP Impurity C 7-epi-Docetaxel 7-Epi-Ta
DTX03

5�,20-Epoxy-1,7a-dihydroxy-9,10-dioxotax-11-ene-2a,4,13a-triyl 4-acetate 2-benzoate 13-[(2R,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-3-phenylpropanoate]
CAS:162784-72-7
Docetaxel EP Impurity D 10-Deoxy-10-Oxo-7-epi-Doc
DTX04

5�,20-Epoxy-1,7�,10�-trihydroxy-9-oxotax-11-ene-2a,4,13a-triyl 4-acetate 13-[(2R,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-3-phenyl propanoate] 2-[(2E)-2-methylbut-2-enoate]
CAS:1887057-05-7
Docetaxel EP Impurity A 2-O-Desbenzoyl-2-O-Tiglyl
DTX01

5�,20-Epoxy-1,7�,10�-trihydroxy-9-oxotax-11-ene-2a,4,13a-triyl 4-acetate 2-benzoate 13-[(2R,3S)-3-[[(1,1-dimethyl-2-hydroxyethoxy)carbonyl]amino]-2-hydroxy-3-phenylpropanoate]
CAS:154044-57-2
Docetaxel Hydroxy t-BOC Analog
DTX53

5�,20-Epoxy-1,7�,10�-trihydroxy-9-oxotax-11-ene-2a,4,13a-triyl 4-acetate 2-benzoate 13-[(2R,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-3-phenylpropanoate]
CAS:114977-28-5
Docetaxel (Anhydrous)
DTX00A

5�,20-Epoxy-1,7�-dihydroxy-9,10-dioxotax-11-ene-2a,4,13a-triyl 4-acetate 2-benzoate 13-[(2R,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-3-henylpropanoate]
CAS:167074-97-7
Docetaxel EP Impurity B 10-Deoxy-10-Oxo Docetaxel
DTX02

5�,20-Epoxy-1,7�-dihydroxy-9-oxotax-11-ene-2a,4,10�,13a-tetrayl 4,10-diacetate 2-benzoate 13-[(2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenyl propanoate]
CAS:33069-62-4
Docetaxel EP Impurity F Paclitaxel Taxol
DTX06

5�,20-Epoxy-1,7�-dihydroxy-9-oxotax-11-ene-2a,4,10�,13a-tetrayl 4,10-diacetate 2-benzoate 13-[(2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate]
CAS:33069-62-4
Paclitaxel Taxol
PCX00

5�,20-Epoxy-1,7�-dihydroxy-9-oxotax-11-ene-2a,4,10�,13a-tetrayl 4,10-diacetate 2-benzoate 13-[(2R,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-3-henylpropanoate]
CAS:125354-16-7
Docetaxel EP Impurity G 10-Acetyl Docetaxel
DTX07

5�,20-Epoxy-4-(acetyloxy)-1,7a,10�,13a-tetrahydroxy-9-oxotax-11-en-2a-yl benzoate
CAS:71629-92-0
Docetaxel 7-epi-DAB-Impurity 7-epi-10-DAB 7-epi-
DTX55

5�,20-Epoxy-4-(acetyloxy)-1,7�,10�,13a-tetrahydroxy-9-oxotax-11-en-2a-yl benzoate
CAS:32981-86-5
Docetaxel EP Impurity E 10-Desacetyl Baccatin III
DTX05

5�-Cholane-3a,7�,24-triol
CAS:130593-75-8
Ursodeoxycholic Acid EP Impurity I
UDC09

6(R)-[2-(8(S)-HYDROXY]-2(S),6(R)-DIMETHYL-1,2,6,7,8,8A(R)-HEXAHYDRO-1(S)-NAPHTHYL]ETHYL-4(R)-HYDROXY-3,4,5,6-TETRAHYDRO-2H-PYRAN-2-ONE
CAS:79952-42-4
Simvastatin EP Impurity H Simvastatin Lactone Dio
SVS08

6,11-DI-O-METHYLERYTHROMYCIN A
CAS:81103-14-2
Clarithromycin EP Impurity E Clarithromycin USP R
CLR05

6,11-Dihydro-11-(1-methyl-1-oxido-4-piperidinylidene)-5H-imidazo[2,1-b][3]benzazepine-3-carboxaldehyde
CAS:952649-75-1
Alcaftadine-N-Oxide
ATD50

6,11-Dihydro-11-(1-methyl-4-piperidinylidene)-5H-imidazo[2,1-b][3]benzazepine-3-carboxaldehyde
CAS:147084-10-4
Alcaftadine
ATD00

6,11-DIHYDRO-11-(1-METHYL-4-PIPERIDINYLIDENE)-5H-IMIDAZO[2,1-B][3]BENZAZEPINE-3-CARBOXYLIC ACID
CAS:147083-93-0
Alcaftadine 3-Carboxylic Acid
ATD53

6,12-Di-O-methylerythromycin A
CAS:128940-83-0
Clarithromycin EP Impurity F Clarithromycin USP I
CLR06

6,16-DIMETHYLENE-3,20-DIOXOPREGN-4-EN-17-YL ACETATE
CAS:80097-73-0
Melengestrol Acetate USP RC B
MLG22

6,16-Dimethylideneandrosta-1,4-diene-3,17-dione
CAS:2130745-60-5
Exemestane EP Impurity C
EXM03

6,17a-Dimethyl-3,17-dioxo-D-homoandrosta-4,6-dien17aa-yl acetate
CAS:74910-22-8
Megestrol Acetate EP Impurity C Megestrol Acetate
MGA03

6,6'-bis (Difluoro methoxy)-2,2'-bis[[(3,4-dimethoxy pyridin-2-yl)methyl] sulfinyl]-1H,1'H-5,5'-bibenzimidazolyl
CAS:2115779-15-0
Pantoprazole EP Impurity E Pantoprazole USP RC E
PTP05

6,6'-Dimethoxy-2,2'-binaphthalenyl
CAS:29619-45-2
Nabumetone EP Impurity F
NBM06

6,6'-Methylene-bis[(3RS)-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-1,2,3,9-tetrahydro-4H-carbazol-4-one
CAS:1076198-52-1
Ondansetron EP Impurity B Ondansetron USP RC B O
ODS02

6,7,8,9-TETRAHYDRO-3-[2-[4-(6-METHOXY-1,2-BENZISOXAZOL-3-YL)-1-PIPERIDINYL]ETHYL]-2-METHYL-4H-PYRIDO[1,2-A]PYRIMIDIN-4-ONE
CAS:1246817-15-1
Risperidone RC 11 6-Desfluoro 6-Methoxy Risperido
RSP81

6,7,8-Trichloroimidazo[2,1-b]quinazolin-2(1H,3H,5H)-one
CAS:1092352-99-2
Anagrelide RC 7
ANL67B

6,7,9,10-Tetrahydro-6,10-methano-8H-pyrazino[2,3-h][3]benzazepine-8-carboxaldehyde
CAS:796865-82-2
Varenicline N-Formyl Impurity
VCT56

6,7-bis (2-Methoxyethoxy)-quinazolin-4(3H)-one
CAS:179688-29-0
Erlotinib Lactam Impurity
ELT48

6,7-BIS(2-CHLOROETHOXY)-N-(3-ETHYNYLPHENYL)-4-QUINAZOLINAMINE
CAS:183321-82-6
Erlotinib Dichloroethyl Impurity (Base)
ELT52B

6,7-Bis(2-chloroethoxy)-N-(3-ethynylphenyl)-4-quinazolinamine HCl
CAS:183320-00-5
Erlotinib Dichloroethyl Impurity (HCl)
ELT52H

6,7-bis[4-(Ethoxycarbonyl)piperazin-1-yl]-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
Norfloxacin EP Impurity J
NFX10

6,7-Dehydroestrone
CAS:2208-12-0
Estrone 6-Dehydro Impurity
ETN58

6,7-Dibromo-1,2,3,4-tetramethyl-1H-indol-5-ol
Arbidol RC 3
ADX63

6,7-Dichloro-1,2,3,5-tetrahydro-2-oxoimidazo[2,1,b]quinazolin-5-yl Acetate
CAS:1076198-71-4
Anagrelide 5-Acetoxy Impurity
ANL55

6,7-Dichloro-1,5-dihydro-3-hydroxyimidazo[2,1-b]quinazolin-2(3H)-one
CAS:733043-41-9
Anagrelide 3-Hydroxy Impurity
ANL53

6,7-DICHLORO-1,5-DIHYDROIMIDAZO[2,1-B]QUINAZOLIN-2(3H)-ONE
CAS:68475-42-3
Anagrelide (Base)
ANL00B

6,7-Dichloro-1,5-dihydroimidazo[2,1-b]quinazolin-2(3H)-one HCl
CAS:58579-51-4
Anagrelide (HCl) Anagrelide Hydrochloride
ANL00H

6,7-Dichloro-1,5-dihydroimidazo[2,1-b]quinazolin-2(3H)-one HCl monohydrate
CAS:823178-43-4
Anagrelide (HCl.H2O) Anagrelide Hydrochloride Mon
ANL00X

6,7-Difluoro-8-hydroxy-1-(methylamino)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
CAS:115551-40-1
Marbofloxacin EP Impurity A
MBF01

6,7-Dihydro-1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxo-1-piperidinyl) phenyl]-1H-pyrazolo[3,4-c]pyridine-3-carboxamide
CAS:1074549-89-5
Apixaban 4,5-Dehydro Carboxamide
APX45

6,7-Dihydro-1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxo-1-piperidinyl) phenyl]-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid
Apixaban 4,5-Dehydro Carboxylic Acid
APX60

6,7-Dihydro-1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxo-1-piperidinyl) phenyl]-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester
Apixaban 4,5-Dehydro Carboxylic Acid Ethyl Ester
APX48

6,7-DIHYDROTHIENO[3,2-C]PYRIDIN-4(5H)-ONE
CAS:68559-60-4
Ticlodipine EP Impurity B Ticlodipine USP RC A
TDP02

6,7-DIHYDROXY-1-ISOPROPYLINDOLIN-3-ONE
Isoprenaline Impurity 6
IPL56

6,7-DIMETHOXY-2,4-QUINAZOLINEDIONE
CAS:28888-44-0
Doxazosin EP Impurity D Doxazosin USP RC B
DXZ04

6,7-DIMETHOXY-2-(PIPERAZIN-1-YL)QUINAZOLIN-4-AMINE
CAS:60547-97-9
Doxazosin EP Impurity G Terazosin EP Impurity C
DXZ07

6,7-DIMETHOXY-3-(PIPERAZIN-1-YL)ISOQUINOLIN-1-AMINE
CAS:113534-03-5
Terazosin RC 2
TRZ62

6,7-DIMETHOXY-N2,N2-DIMETHYLQUINAZOLINE-2,4-DIAMINE
CAS:19216-53-6
Alfuzosin EP Impurity F
AFZ06

6,7-DIMETHOXYQUINAZOLIN-4(1H)-ONE
CAS:13794-72-4
Erlotinib RC 5
ELT65

6,7-Dimethyl-8-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]-pteridine-2,4(3H,8H)-dione
CAS:2535-20-8
Riboflavin EP Impurity C 6,7-Dimethylribityl Luma
RBF03

6,8,9,10-TETRAHYDRO-6,10-METHANO-7H-PYRAZINO[2,3-H][3]BENZAZEPIN-7-ONE
CAS:873302-30-8
Varenicline Lactam Impurity
VCT54

6,8-Difluoro-1-(methylamino)-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid
CAS:100276-37-7
Marbofloxacin EP Impurity C (Base)
MBF03B

6,8-Difluoro-1-(methylamino)-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid sulfate
Marbofloxacin EP Impurity C (Sulfate)
MBF03S

6-((2-ethoxyphenoxy)(phenyl)methyl)morpholin-3-one
CAS:93886-32-9
Reboxetine RC 14
RBX74

6-((2R,6S)-2,6-DIMETHYLMORPHOLINO)PYRIDIN-3-AMINE HYDROCHLORIDE
CAS:1282295-12-8
Erismodegib Impurity 2 (HCl)
EMG52H

6-((3-Hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl)methyl)-4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol
CAS:19203-56-6
Pyridoxine Dimer Bis-Pyridoxine
PDX52

6-((3R,5R)-7-(2-(4-Fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoyloxy)-3,4,5-trihydroxy-tetrahydro-2H-pyran-2-carboxylic acid
CAS:463962-58-5
Atorvastatin Acyl-beta-D-Glucuronide
ATV90

6-(1-Aminoethyl)-3-(2-ethoxyphenyl)-1,2,4-triazin-5(4H)-one
CAS:1417529-56-6
Vardenafil Impurity 9
VDF79

6-(1-Bromoethyl)-3-(2-ethoxyphenyl)-1,2,4-triazin-5(4H)-one
CAS:1417529-54-4
Vardenafil Impurity 10
VDF80

6-(2,2,2-TRIFLUOROACETAMIDO)HEXANOIC ACID
CAS:407-91-0
Aminocaproic Acid N-Trifluoroacetyl
ACP56

6-(2,3,5-TRICHLOROPHENYL)-1,2,4-TRIAZINE-3,5-DIAMINE
CAS:77668-56-5
Lamotrigine 5-Chloro
LMT50

6-(2,3-DICHLOROPHENYL)-1,2,4-TRIAZINE-3,5(2H,4H)-DIONE
CAS:661463-79-2
Lamotrigine EP Impurity D
LMT04

6-(2,3-DICHLOROPHENYL)-1,2,4-TRIAZINE-3,5-DIAMINE
CAS:84057-84-1
Lamotrigine
LMT00

6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5-diamine N2-oxide
CAS:136565-76-9
Lamotrigine N2-oxide
LMT54