1,3-Propanediamine, N-methyl-N'-(2-nitrophenyl)-N-(3-((2-nitrophenyl)amino)propyl)- 57402-83-2 EINECS 260-719-2 N-Methyl-N'-(2-nitrophenyl)-N-(3-((2-nitrophenyl)amino)propyl)propane-1,3-diamine