2056-21-5 Benzylamine, N,N'-hexamethylenebis(2-chloro-, dihydrochloride HEXAMETHYLENEDIAMINE, N,N'-BIS(o-CHLOROBENZYL)-, DIHYDROCHLORIDE N,N'-Bis(o-chlorobenzyl)hexamethylenediamine dihydrochloride N,N'-Hexamethylenebis(2-chlorobenzylamine) dihydrochloride