1,2-Ethanediamine, N,N-diethyl-N'-11H-pyrido(3,2-a)carbazol-3-yl-, dihydrochloride 127040-44-2 3-(beta-Diethylaminoethylamino)-11H-pyrido(3,2-a)carbazole dihydrochloride N,N-Diethyl-N'-11H-pyrido(3,2-a)carbazol-3-yl-1,2-ethanediamine dihydrochloride