Synonyms: 5,6-diamino-uracihemisulfate;5,6-diaminouracilsemisulfate;5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE HEMISULFATE;5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE SULFATE DIHYDRATE;5,6-DIAMINO-2,4-PYRIMIDINEDIOL SULFATE DIHYDRATE;5,6-DIAMINO-4-HYDROXY-2(1H)-PYRIMIDINONE SULFATE DIHYDRATE;5,6-DIAMINOURACIL HEMISULFATE;5,6-DIAMINOURACIL SULFATE DIHYDRATE