68656-50-8 N-(4-Chloro-3-cyanophenyl)-N'-(imino(methylamino)methyl)-urea hydrochloride Urea, 1-(4-chloro-3-cyanophenyl)-3-methylamidino-, hydrochloride Urea, N-(4-chloro-3-cyanophenyl)-N'-(imino(methylamino)methyl)-, monohydrochloride