1H-Pyrido(3,4-b)indole, 2,3,4,9-tetrahydro-3,9-dimethyl-1-(2-pyridinyl)-, monohydrochloride 2,3,4,9-Tetrahydro-3,9-dimethyl-1-(2-pyridinyl)-1H-pyrido(3,4-b)indole hydrochloride 40717-58-6