68656-74-6 N-(2,6-Dichlorophenyl)-N'-(imino(methylamino)methyl)-urea hydrochloride Urea, 1-(2,6-dichlorophenyl)-3-methylamidino-, hydrochloride Urea, N-(2,6-dichlorophenyl)-N'-(imino(methylamino)methyl)-, monohydrochloride