1,2-dimethoxy-6-methyl-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinoline 4H-dibenzo[de,g]quinoline, 5,6,6a,7-tetrahydro-1,2-dimethoxy-6-methyl- InChI=1/C19H21NO2/c1-20-9-8-13-11-16(21-2)19(22-3)18-14-7-5-4-6-12(14)10-15(20)17(13)18/h4-7,11,15H,8-10H2,1-3H