1-(3,4,5-Trichlorophenethyl)-2-methyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline HCl 63937-63-3 ISOQUINOLINE, 1,2,3,4-TETRAHYDRO-6,7-DIMETHOXY-2-METHYL-1-(3,4,5-TRICHLOROPHENET Isoquinoline, 1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-1-(3,4,5-trichlorophenethyl)-, hydrochloride