((Octahydro-2-azocinyl)methyl)guanidine sulfate hydrate 32059-15-7 42839-36-1 Calnegyt Egyt 739 Guanazodine sulfate monohydrate Guanidine, ((octahydro-2-azocinyl)methyl)-, sulfate, hydrate NSC 303851 Sanegyt