Try searching for...
SCFBio, IIT Delhi
Formula: C15H22O | Mol. Weight: 218.33 g/mol
IUPAC: (1R,2E,6Z,10R)-7,11,11-trimethylbicyclo[8.1.0]undeca-2,6-diene-3-carbaldehyde
CC1=CCCC(=CC2C(C2(C)C)CC1)C=O