1-(3-Chlorophenethyl)-2-methyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride 63937-79-1 ISOQUINOLINE, 1,2,3,4-TETRAHYDRO-1-(3-CHLOROPHENETHYL)-6,7-DIMETHOXY-2-METHYL-, Isoquinoline, 1,2,3,4-tetrahydro-1-(3-chlorophenethyl)-6,7-dimethoxy-2-methyl-, hydrochloride