Try searching for...
SCFBio, IIT Delhi
Formula: C22H22O12 | Mol. Weight: 478.40 g/mol
IUPAC: 2-(3,4-dihydroxyphenyl)-5-hydroxy-3-methoxy-7-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one
COC1=C(OC2=CC(=CC(=C2C1=O)O)OC3C(C(C(C(O3)CO)O)O)O)C4=CC(=C(C=C4)O)O