138380-46-8 1H-Indolo(3,2-c)quinoline-1,4(11H)-dione, 2,6-dimethyl- 2,6-Dimethyl-1H-indolo(3,2-c)quinoline-1,4(11H)-dione 2,6-Dimethylindolo(3,2-c)quinoline-1,4-dione