Try searching for...
SCFBio, IIT Delhi
Formula: C21H22O8 | Mol. Weight: 402.40 g/mol
IUPAC: 2-(2,5-dimethoxyphenyl)-3,6,7,8-tetramethoxychromen-4-one
COC1=CC(=C(C=C1)OC)C2=C(C(=O)C3=CC(=C(C(=C3O2)OC)OC)OC)OC