5-Nitroso-2,4,6-pyrimidinetriamine1006-23-1100 % similar Tetraaminopyrimidine1004-74-652 % similar 2,4,5,6-Tetraaminopyrimidine hydrochloride39944-62-247 % similar 2,6-Diamino-5-nitroso-4(3H)-pyrimidinone2387-48-644 % similar 2,4,5,6-Tetraaminopyrimidine sulfate49647-58-744 % similar 2,4,5,6-Tetraaminopyrimidine sulfate (1:1)5392-28-944 % similar 2,6-Diaminopurine1904-98-933 % similar