1,3,5,7-Tetraazatricyclo(3.3.1.1(3,7))decane, monohydrochloride 24360-05-2 EINECS 246-206-6 Hexamethylenetetramine hydrogen chloride Hexamethylenetetramine, monohydrochloride Pellurin Urobenyl Urotropine hydrochloride Urotropine monohydrochloride