39744-92-8 5-Benzyl-6,7,8,9-tetrahydro-5H-pyrido(4,3-b)indole monohydrochloride 5H-Pyrido(4,3-b)indole, 6,7,8,9-tetrahydro-5-benzyl-, monohydrochloride 9-Benzyl-5,6,7,8-tetrahydro-gamma-carboline hydrochloride