ETHYL 2-(5,6,7,8-TETRAHYDROPYRIDO[3,4-D]PYRIMIDIN-4-YL)ACETATE HYDROCHLORIDE CAS:1187830-52-9 448776 ETHYL 2-(5,6,7,8-TETRAHYDROPYRIDO[4,3-D]PYRIMIDIN-4-YL)ACETATE HYDROCHLORIDE CAS:1187830-78-9 448777 |