2,3,5-trimethylbenzo-1,4-quinone 2,5-cyclohexadiene-1,4-dione, 2,3,5-trimethyl- 935-92-2 InChI=1/C9H10O2/c1-5-4-8(10)6(2)7(3)9(5)11/h4H,1-3H