Try searching for...
SCFBio, IIT Delhi
Formula: C22H22O11 | Mol. Weight: 462.40 g/mol
IUPAC: 5-hydroxy-2-(4-hydroxy-3,5-dimethoxyphenyl)-7-(3,4,5-trihydroxyoxan-2-yl)oxychromen-4-one
COC1=CC(=CC(=C1O)OC)C2=CC(=O)C3=C(C=C(C=C3O2)OC4C(C(C(CO4)O)O)O)O