12-methoxy-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, 12-methoxy- InChI=1/C18H11NO4/c1-21-11-4-2-3-10-14(11)15-13-9(5-6-19-16(13)17(10)20)7-12-18(15)23-8-22-12/h2-7H,8H2,1H