Showing structure for 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-6-[(2r,3s,4s,5r,6s)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-8-[(2r,3s,4r,5s)-3,4,5-trihydroxyoxan-2-yl]chromen-4-one