2,4-Diamino-6-hydroxypyrimidine 2,4-Diaminohypoxanthine 2,6-Diamino-1H-pyrimidin-4-one 2,6-Diamino-4-hydroxypyrimidine 2,6-Diamino-4-pyrimidinol 4(1H)-Pyrimidinone, 2,6-diamino- 40306-60-3 41982-31-4 56-06-4 58470-85-2 AI3-52085 EINECS 200-254-4 NSC 44914 NSC 680818 NSC 9302