Showing structure for (1r,5r,6r,13r,21r)-5,13-bis(3,4-dihydroxyphenyl)-16-[(2r,3r,4s)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2h-1-benzopyran-4-yl]-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2,8,10,15(20),16,18-hexaene-6,9,17,19,21-pentol