2,3-dimethoxy-5-methylbenzo-1,4-quinone 2,5-cyclohexadiene-1,4-dione, 2,3-dimethoxy-5-methyl- InChI=1/C9H10O4/c1-5-4-6(10)8(12-2)9(13-3)7(5)11/h4H,1-3H