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