Synonyms: 56109-67-2;NSC292816;1-Butanone, 1,1'-(9-ethyl-9H-carbazole-3,6-diyl)bis(4-(dimethylamino)-, (E)-2-butenedioate (1:1);1-Butanone, 1,1'-(9-ethyl-9H-carbazole-3,6-diyl)bis[4-(dimethylamino)-, (E)-2-butenedioate (1:1);NSC 292816;AC1O52HZ;(Z)-but-2-enedioic acid; 4-(dimethylamino)-1-[6-[4-(dimethylamino)butanoyl]-9-ethylcarbazol-3-yl]butan-1-one