19950-80-2 4-(2-Diaethylaminoaethylaminomethyl)dibenzothiophen di(hydrogenmaleat) [German] 4-(2-Diethylaminoethylaminomethyl)dibenzothiophene di(hydrogen maleate) Ethylenediamine, N'-(4-dibenzothienylmethyl)-N,N-diethyl-, maleate (1:2) N'-(4-Dibenzothienylmethyl)-N,N-diethylethylenediamine maleate (1:2)