1-(4-Chlorophenethyl)-6,7-dimethoxy-2-phenethyl-1,2,3,4-tetrahydroisoquinoline oxalate 63937-82-6 ISOQUINOLINE, 1,2,3,4-TETRAHYDRO-1-(4-CHLOROPHENETHYL)-6,7-DIMETHOXY-2-PHENETHYL Isoquinoline, 1,2,3,4-tetrahydro-1-(4-chlorophenethyl)-6,7-dimethoxy-2-phenethyl-, hydrogen oxalate