Synonyms: 1,4-Benzenediamine, N,N,N',N'-tetrakis(4-(dipropylamino)phenyl)-;1,4-benzenediamine, N~1~,N~1'~-1,4-phenylenebis[N~1~-[4-(dipropylamino)phenyl]-N~4~,N~4~-dipropyl-;N~1~,N~1~'-1,4-Phenylenebis{N-[4-(dipropylamino)phenyl]-N',N'-dipropylbenzene-1,4-diamine}