1-(3-Nitrophenethyl)-2-methyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride 63937-58-6 ISOQUINOLINE, 1,2,3,4-TETRAHYDRO-6,7-DIMETHOXY-2-METHYL-1-(3-NITROPHENETHYL)-, H Isoquinoline, 1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-1-(3-nitrophenethyl)-, hydrochloride