1-Isopropyl-4-aminopyrazolo[3,4-d]pyrimidine 1H-Pyrazolo[3,4-d]pyrimidin-4-amine (9CI), 1-(1-methylethyl)- 1H-Pyrazolo[3,4-d]pyrimidine (8CI), 4-amino-1-isopropyl- 4014-61-3 NSC18275