1,1'-(6-Methyl-2,4-pyrimidinediyl)diguanidine dihydrochloride 2,4-Diguanidino-6-methylpyrimidine dihydrochloride 32488-77-0 GUANIDINE, 1,1'-(6-METHYL-2,4-PYRIMIDINEDIYL)DI-, DIHYDROCHLORIDE