Showing structure for 2-(3,4-dihydroxyphenyl)-8-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,4-dihydro-2h-1-benzopyran-4-yl]-3,4-dihydro-2h-1-benzopyran-3,5,7-triol