Synonyms: Uracil,5,6-diamino- (6CI,7CI,8CI); 2,4-Dihydroxy-5,6-diaminopyrimidine;2,6-Dihydroxy-4,5-diaminopyrimidine; 4,5-Diamino-2,6-dihydroxypyrimidine;4,5-Diaminouracil; 5,6-Diamino-2,4(1H,3H)-pyrimidinedione;5,6-Diamino-2,4-dihydroxypyrimidine; 5,6-Diaminouracil