1H-Indolo(3,2,1-de)(1,5)naphthyridine, 2,3,3a,4-tetrahydro-3,4-diethyl-, monohydrochloride 2,3,3a,4-Tetrahydro-3,4-diethyl-1H-indolo(3,2,1-de)(1,5)naphthyridine monohydrochloride 3,4-Diethyl-1,2,3,3a-tetrahydroindolo(3,2,1-de)(1,5)naphthyridine hydrochloride 94831-73-9