1H-Pyrazino(3,2,1-jk)carbazole, 2,3,3a,4,5,6-hexahydro-3,8-dimethyl-, monohydrochloride 2,3,3a,4,5,6-Hexahydro-3,8-dimethyl-1H-pyrazino(3,2,1-jk)carbazole hydrochloride 34273-99-9