1,7-Dihydro-4H-pyrrolo(2,3-d)pyrimidin-4-one 3680-71-5 4-Hydroxypyrrolo(2,3-d)pyrimidine 4-Hydroxypyrrolopyrimidine 4H-Pyrrolo(2,3-d)pyrimidin-4-one, 1,7-dihydro- (9CI) 7-Deazahypoxanthine 7H-Pyrrolo(2,3-d)pyrimidin-4-ol NSC 124164 NSC 59251 Pyrrolo(2,3-d)pyrimidin-4-one