Showing structure for (2r,3r)-5,7-dihydroxy-8-[(2r,3s,4s)-3,5,7-trihydroxy-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2h-1-benzopyran-4-yl]-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2h-1-benzopyran-3-yl 3,4,5-trihydroxybenzoate