1,3-Propanediamine, N,N'-dimethyl-N-[3-(methylamino)propyl]- 123-70-6 3,3'-Bis(methylamino)-N-methyldipropylamine 3,3'-Methyliminobis(N-methylpropylamine) Dipropylamine, N-methyl-3,3'-bis(methylamino)- N,N'-Dimethylmethyliminobis(dipropylamine) NSC166322