IUPAC Name: 5-hydroxy-2-(4-hydroxyphenyl)-7-[(3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one

Chemical Formula: C21H20O10

Exact Mass: 441.05 g/mol

Molecular Weight: 441.32 g/mol

Elemental Analysis: C, 57.15; H, 2.97; O, 39.88