Showing structure for 5,7-dihydroxy-4-[3,5,7-trihydroxy-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2h-1-benzopyran-6-yl]-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2h-1-benzopyran-3-yl 3,4,5-trihydroxybenzoate