Synonyms: 5,7-dihydroxy-2-(4-hydroxyphenyl)-6-[(2s,3r,4r,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-8-[(2s,3r,4s,5s)-3,4,5-trihydroxyoxan-2-yl]chromen-4-one