Try searching for...
SCFBio, IIT Delhi
Formula: C16H16O4 | Mol. Weight: 272.29 g/mol
IUPAC: 7-hydroxy-2,3,3,9-tetramethyl-2H-benzo[g][1]benzofuran-4,5-dione
CC1C(C2=C(O1)C3=C(C=C(C=C3C)O)C(=O)C2=O)(C)C