15932-34-0 4H-Pyrazino(3,2,1-jk)carbazole, 5,6-dihydro-8-methyl-, monohydrochloride 5,6-Dihydro-8-methyl-4H-pyrazino(3,2,1-jk)carbazole hydrochloride 8-Methyl-1,10-trimethylene-pyrazino(1,2-a)indole hydrochloride