1193-22-2 4(1H)-Pyrimidinone, 6-amino- (8CI)(9CI) 4-Amino-6-hydroxypyrimidine 4-Hydroxy-6-aminopyrimidine 4-Oxy-6-aminopyrimidine 4-Pyrimidinol, 6-amino- 6-Amino-1H-pyrimidin-4-one EINECS 214-771-8 NSC 19868