1H-Pyrrolo(3,4-d)pyrimidine-5-carboxylic acid, 2,3,4,6-tetrahydro-2,4-dioxo-7-phenyl- 57436-27-8 7-Phenyl-5-carboxy-6H-pyrrolo(3,4-d)pyrimidin-2(1H),4(3H)-dione BRN 0757134