5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]PYRIMIDIN-7-ONE CAS:139756-21-1 5-(4,6-DIOXO-2-THIOXO-TETRAHYDRO-PYRIMIDIN-5-YLIDENEMETHYL)-FURAN-2-CARBOXYLIC ACID CAS:1385696-12-7 |