1,2,3,4-Tetrahydro-6,7-dimethoxy-3-(4-methylphenyl)isoquinoline hydrochloride 6,7-Dimethoxy-3-(4-tolyl)-1,2,3,4-tetrahydroisoquinoline hydrochloride 87213-01-2 Isoquinoline, 1,2,3,4-tetrahydro-6,7-dimethoxy-3-(4-methylphenyl)-, hydrochloride