923283-55-0

2-methyl-2H-pyrazolo[4,3-d]pyrimidin-7-ol 2-Methyl-2H-pyrazolo[4,3-d]pyrimidin-7(6H)-one 2-Methyl-2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one 2-methyl-2,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one 2,6-Dihydro-2-methyl-7H-pyrazolo[4,3-d]pyrimidin-7-one 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 2,6-dihydro-2-methyl- 2-methyl-2，6-dihydro-7H-pyridineazolebenzo[4，3-d]pyrimidine-7-one