Try searching for...
SCFBio, IIT Delhi
Formula: C15H20O2 | Mol. Weight: 232.32 g/mol
IUPAC: (4aR,8aS,9aR)-3,8a-dimethyl-5-methylidene-4a,6,7,8,9,9a-hexahydro-4H-benzo[f][1]benzofuran-2-one
CC1=C2CC3C(=C)CCCC3(CC2OC1=O)C