2-(2-Benzylhydrazino)-3,4,5,6-tetrahydropyrimidine hydrochloride 57513-73-2 Pyrimidine, 2-(2-benzylhydrazino)-3,4,5,6-tetrahydro-, hydrochloride Pyrimidine, 3,4,5,6-tetrahydro-2-(2-benzylhydrazino)-, hydrochloride