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