1H-Pyrido(3,4-b)indole, 2,3,4,9-tetrahydro-6-methoxy-, monohydrochloride 20315-68-8 35764-54-6 6-Methoxy-1,2,3,4-tetrahydro-beta-carboline hydrochloride 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido(3,4-b)indole monohydrochloride 6-Methoxytryptoline hydrochloride