Synonyms: 4(1H)-Pyrimidinone,2,6-diamino- (8CI,9CI);2,4-Diamino-6-hydroxypyrimidine;2,4-Diamino-6-pyrimidinone;2,6-Diamino-3,4-dihydropyrimidin-4-one;2,6-Diamino-4(1H)-pyrimidinone;2,6-Diamino-4(3H)-pyrimidinone;2,6-Diamino-4-hydroxypyrimidine;2,6-Diamino-4-pyrimidinol;2,6-Diaminopyrimidin-4-one;2,6-Diaminopyrimidine-4(3H)-one;6-Aminoisocytosine;6-Hydroxy-2,4-pyrimidinediamine;NSC 44914;NSC 680818;NSC9302;