Try searching for...
SCFBio, IIT Delhi
Formula: C22H24O10 | Mol. Weight: 448.40 g/mol
IUPAC: 2-(3-hydroxy-4,5-dimethoxyphenyl)-3,5,6,7,8-pentamethoxychromen-4-one
COC1=CC(=CC(=C1OC)O)C2=C(C(=O)C3=C(O2)C(=C(C(=C3OC)OC)OC)OC)OC