(3Z)-5,5,8-trimethylnona-3,7-dien-2-one 3,7-nonadien-2-one, 5,5,8-trimethyl-, (3Z)- InChI=1/C12H20O/c1-10(2)6-8-12(4,5)9-7-11(3)13/h6-7,9H,8H2,1-5H3/b9-7