Try searching for...
SCFBio, IIT Delhi
Formula: C15H20O3 | Mol. Weight: 248.32 g/mol
IUPAC: 9,13-dimethyl-4-methylidene-6,14-dioxatetracyclo[8.4.0.01,13.03,7]tetradecan-5-one
CC1CC2C(CC34C1CCC3(O4)C)C(=C)C(=O)O2