Showing structure for 2-(3,4-dihydroxyphenyl)-5-hydroxy-8-[(2s,3r,4r,5r,6s)-3,4,5-trihydroxy-6-methyloxan-2-yl]-7-{[(2s,3r,4r,5r,6s)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}chromen-4-one