2,4-dimethylbicyclo[4.2.0]octa-1,3,5-triene-7,8-dione InChI=1/C10H8O2/c1-5-3-6(2)8-7(4-5)9(11)10(8)12/h3-4H,1-2H bicyclo[4.2.0]octa-1,3,5-triene-7,8-dione, 2,4-dimethyl-