Formula: C21H22O11 | Mol. Weight: 450.40 g/mol
IUPAC: (E)-3-(3,4-dihydroxyphenyl)-1-[2,4-dihydroxy-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]prop-2-en-1-one
C1=CC(=C(C=C1C=CC(=O)C2=C(C(=C(C=C2)O)OC3C(C(C(C(O3)CO)O)O)O)O)O)O