1,2-Propanediamine, N(sup 2)-(2,6-dimethylphenyl)-, dihydrochloride 1-Amino-2-(2,6-dimethylphenylamino)propane dihydrochloride 83843-36-1 N(sup 2)-(2,6-Dimethylphenyl)-1,2-propanediamine dihydrochloride