Synonyms: 4(1H)-Pyrimidinone,2,6-diamino-5-bromo- (9CI); 4(3H)-Pyrimidinone, 2,6-diamino-5-bromo- (7CI);4-Pyrimidinol, 2,6-diamino-5-bromo- (6CI,8CI);2,4-Diamino-6-hydroxy-5-bromopyrimidine;5-Bromo-2,4-diamino-6-hydroxypyrimidine;5-Bromo-2,6-diaminopyrimidin-4(3H)-one; NSC 40393; NSC 67304; NSC 9303