1,3-benzodioxolo[5,6-c][1,3]dioxolo[4,5-j]phenanthridine, 5,6-dihydro-5-methyl- 5-methyl-5,6-dihydro[1,3]benzodioxolo[5,6-c][1,3]dioxolo[4,5-j]phenanthridine InChI=1/C20H15NO4/c1-21-8-12-5-17-18(24-10-23-17)6-14(12)13-3-2-11-4-16-19(25-9-22-16)7-15(11)20(13)21/h2-7H,8-10H2,1H