Showing structure for (1s,13s)-13-(3,4-dihydroxyphenyl)-9,19-dihydroxy-5-(4-hydroxyphenyl)-17-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2(11),3(8),9,15,17,19-hexaen-7-one