Try searching for...
SCFBio, IIT Delhi
Formula: C15H20O3 | Mol. Weight: 248.32 g/mol
IUPAC: (5aS,9aS,9bR)-6,6,9a-trimethyl-5,5a,7,8,9,9b-hexahydrobenzo[e][2]benzofuran-1,3-dione
CC1(CCCC2(C1CC=C3C2C(=O)OC3=O)C)C