1,2-Ethanediamine, N,N'-bis(1,3-dimethylbutylidene)- 1001-11-2 25707-70-4 EINECS 247-196-6 Ethylenediamine, N,N'-bis(1,3-dimethylbutylidene)- N,N'-Bis(1,3-dimethylbutylidene)ethylenediamine