1,3-Propanediamine, N,N'-dimethyl-N-(3-(methylamino)propyl)- 123-70-6 3,3'-Methyliminobis(N-methylpropylamine) Dipropylamine, N-methyl-3,3'-bis(methylamino)- (8CI) EINECS 204-645-0 Methylbis(3-methylaminopropyl)amine N,N'-Dimethylmethyliminobis(dipropylamine) NSC 166322