1194-21-4 2-Amino-6-chloro-4-pyrimidinol 2-Amino-6-chloropyrimidin-4-ol hydrate 4(1H)-Pyrimidinone, 2-amino-6-chloro- 4-Pyrimidinol, 2-amino-6-chloro- AI3-52454 EINECS 214-785-4 NSC 35655