2-Propanone, 1-(13,14-dihydro-13-methyl[1,3]benzo- dioxolo[5,6-c]-1,3-dioxolo[5,6-c]-1,3-dioxolo[4,5-i]phenanthridin-14-yl)- 37687-34-6 NSC129231 [1,3]Benzodioxolo[5,6-c]-1,3-dioxolo[4,5-i]phenanthridine, 13,14-dihydro-13-methyl-14-(2-oxopropyl)-