1-(2,3,4-Trichlorophenethyl)-2-methyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline 63937-61-1 ISOQUINOLINE, 1,2,3,4-TETRAHYDRO-6,7-DIMETHOXY-2-METHYL-1-(2,3,4-TRICHLOROPHENET Isoquinoline, 1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-1-(2,3,4-trichlorophenethyl)- Isoquinoline, 6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydro-1-(2,3,4-trichlorophenethyl)-