3,3,5-trimethylcyclohex-5-ene-1,2,4-trione 5-cyclohexene-1,2,4-trione, 3,3,5-trimethyl- InChI=1/C9H10O3/c1-5-4-6(10)8(12)9(2,3)7(5)11/h4H,1-3H