1-(2',4'-Diimino-1',2',3',4'-tetrahydro-1', 3',5'-triazino)-7-hydroxynaphthalene hydrochloride 2-Naphthalenol, 8-(4-amino-2-imino-1,3,5-triazin-1(2H)-yl)-, monohydrochloride 68911-97-7