Formula: C25H20O9 | Mol. Weight: 464.40 g/mol
IUPAC: 6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-3-[(2S,3R)-2-(3,4-dihydroxyphenyl)-6-methyl-4-oxo-2,3-dihydropyran-3-yl]-4-hydroxypyran-2-one
CC1=CC(=O)C(C(O1)C2=CC(=C(C=C2)O)O)C3=C(C=C(OC3=O)C=CC4=CC(=C(C=C4)O)O)O