METHYLPHENIDATE HYDROCHLORIDE ERYTHRO ISOMER CAS:29419-96-3 Formula: C14H19NO2 : HCl SZ-M043009 95+% MEXILETINE HYDROCHLORIDE EP IMPURITY C CAS:2059988-39-3 Formula: C22H32N2O2 : 2(HCl) SZ-M011004 95+% |