Formula: C20H22O11 | Mol. Weight: 438.40 g/mol
IUPAC: 4-hydroxy-6-[(E)-2-(3-hydroxy-4-methoxyphenyl)ethenyl]-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxypyran-2-one
COC1=C(C=C(C=C1)C=CC2=CC(=C(C(=O)O2)OC3C(C(C(C(O3)CO)O)O)O)O)O