2-cyclohexen-1-one, 3,5,5-trimethyl-4-methylene- 3,5,5-trimethyl-4-methylenecyclohex-2-en-1-one InChI=1/C10H14O/c1-7-5-9(11)6-10(3,4)8(7)2/h5H,2,6H2,1,3-4H