1,5-Diaminopentane dihydrochloride 1,5-Pentanediamine, dihydrochloride 1476-39-7 35408-57-2 Cadaverine dihydrochloride EINECS 216-022-0 N,N'-Dimethyltrimethylenediammonium dichloride N,N'-Pentane-1,5-diyldiammonium dichloride NSC 5862 Pentamethylenediamine dihydrochloride