6 7 dimethoxy 1 2 3 4 tetrahydroisoquinoline hydrochloride July 8, 2019 16 32 64 128 6 7-dimethoxy-1 2 3 4-tetrahydroisoquinoline 6 7-dimethoxy-3 4-dihydroisoquinoline hydrochloride 6 7-dimethoxy-1-methyl-1 2 3 4-tetrahydroisoquinoline 6 7-dimethoxy-3 4-dihydroisoquinoline 5 6 7 8-tetrahydroisoquinoline
