1,3-Propanediamine, N,N-diethyl-N'-(9-methoxy-5,11-dimethyl-6H-pyrido(4,3-b)carbazol-1-yl)-, (Z)-2-butenedioate (1:2) 1-(3-Diethylaminopropylamino)-9-methoxyellipticine bimaleate 72238-02-9 94944-79-3 EINECS 305-656-4 N,N-Diethyl-N'-(9-methoxy-5,11-dimethyl-6H-pyrido(4,3-b)carbazol-1-yl)propane-1,3-diamine dimaleate RTE