Try searching for...
SCFBio, IIT Delhi
Formula: C18H16O5 | Mol. Weight: 312.30 g/mol
IUPAC: 5,6,7-trimethoxy-2-phenylchromen-4-one
COC1=C(C(=C2C(=C1)OC(=CC2=O)C3=CC=CC=C3)OC)OC