Formula: C27H20O11 | Mol. Weight: 520.40 g/mol
IUPAC: 3-(3,4-dihydroxyphenyl)-2-[(E)-3-[(2Z)-2-[(3,4-dihydroxyphenyl)methylidene]-3-oxo-1,4-benzodioxin-6-yl]prop-2-enoyl]oxypropanoic acid
C1=CC(=C(C=C1CC(C(=O)O)OC(=O)C=CC2=CC3=C(C=C2)OC(=CC4=CC(=C(C=C4)O)O)C(=O)O3)O)O