Try searching for...
SCFBio, IIT Delhi
Formula: C18H22O4 | Mol. Weight: 302.40 g/mol
IUPAC: 6-acetyl-8-[(E)-3-hydroxy-3-methylbut-1-enyl]-2,2-dimethyl-3H-chromen-4-one
CC(=O)C1=CC(=C2C(=C1)C(=O)CC(O2)(C)C)C=CC(C)(C)O