3,7,7-trimethylbicyclo[4.1.0]hept-3-en-2-one InChI=1/C10H14O/c1-6-4-5-7-8(9(6)11)10(7,2)3/h4,7-8H,5H2,1-3H bicyclo[4.1.0]hept-3-en-2-one, 3,7,7-trimethyl-