Try searching for...
SCFBio, IIT Delhi
Formula: C18H14O3 | Mol. Weight: 278.30 g/mol
IUPAC: 1-methyl-6-methylidene-8,9-dihydro-7H-naphtho[1,2-g][1]benzofuran-10,11-dione
CC1=COC2=C1C(=O)C(=O)C3=C2C=CC4=C3CCCC4=C