10,11-dimethoxy-8H-benzo[g][1,3]benzodioxolo[6,5,4-de]quinolin-8-one 8H-benzo[g]-1,3-benzodioxolo[6,5,4-de]quinolin-8-one, 10,11-dimethoxy- InChI=1/C19H13NO5/c1-22-12-6-10-11(7-13(12)23-2)18(21)17-15-9(3-4-20-17)5-14-19(16(10)15)25-8-24-14/h3-7H,8H2,1-2H