Nolatrexed dihydrochloride152946-68-433 % similar Sapropterin dihydrochloride69056-38-833 % similar 5,6-Diaminouracil3240-72-032 % similar 2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride73978-41-332 % similar (Triaminopyrimidin-4-yl)oxidanesulfonic acid1603-02-732 % similar Xanthopterin monohydrate5979-01-132 % similar 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine1004-76-831 % similar Guanine sulfate10333-92-331 % similar 2-Aminoresorcinol hydrochloride634-60-631 % similar Vicine152-93-230 % similar 2,4,5,6-Tetraaminopyrimidine hydrochloride39944-62-230 % similar