1-(2-Nitrophenethyl)-2-methyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline 5-21-05-00281 (Beilstein Handbook Reference) 63937-56-4 BRN 1511659 ISOQUINOLINE, 1,2,3,4-TETRAHYDRO-6,7-DIMETHOXY-2-METHYL-1-(2-NITROPHENETHYL)- Isoquinoline, 6,7-dimethoxy-2-methyl-1-(2-nitrophenethyl)-1,2,3,4-tetrahydro-