2,2,4-trimethylcyclohept-4-ene-1,3-dione 4-cycloheptene-1,3-dione, 2,2,4-trimethyl- InChI=1/C10H14O2/c1-7-5-4-6-8(11)10(2,3)9(7)12/h5H,4,6H2,1-3H