68656-61-1 BRN 2166467 N-(2,6-Dimethyl-4-nitrophenyl)-N'-(imino(methylamino)methyl)-urea Urea, 1-(2,6-dimethyl-4-nitrophenyl)-3-methylamidino- Urea, N-(2,6-dimethyl-4-nitrophenyl)-N'-(imino(methylamino)methyl)-