2-(3,4-Dichlorobenzylhydrazino)-3,4,5,6-tetrahydropyrimidine hydrochloride 57513-75-4 Pyrimidine, 2-(3,4-dichlorobenzylhydrazino)-3,4,5,6-tetrahydro-, hydrochloride Pyrimidine, 3,4,5,6-tetrahydro-2-(3,4-dichlorobenzylhydrazino)-, hydrochloride