1,8-Dihydro-8-phenyl-4H-pyrazolo(3,4-d)(1,2,4)triazolo(1,5-a)pyrimidin-4-one 141300-27-8 4H-Pyrazolo(3,4-d)(1,2,4)triazolo(1,5-a)pyrimidin-4-one, 1,8-dihydro-8-phenyl- BRN 4876906