Showing structure for 4-[2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2h-1-benzopyran-8-yl]-8-[3,5,7-trihydroxy-2-(4-hydroxyphenyl)-3,4-dihydro-2h-1-benzopyran-4-yl]-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2h-1-benzopyran-3,5,7-triol