Showing structure for 10-[5,13-bis(3,4-dihydroxyphenyl)-6,9,17,19,21-pentahydroxy-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2,8,10,15,17,19-hexaen-7-yl]-7-(3,4-dihydroxyphenyl)-6,11-dihydroxy-2,8-dioxatricyclo[7.3.1.0⁵,¹³]trideca-1(13),9,11-trien-3-one