Showing structure for (2r,3r,10z,17s,18s)-3,18-bis(4-hydroxyphenyl)-10-[(4-hydroxyphenyl)methylidene]-4,19-dioxahexacyclo[15.6.1.1²,⁵.0¹¹,¹⁶.0²⁰,²⁴.0⁹,²⁵]pentacosa-1(23),5(25),6,8,11,13,15,20(24),21-nonaene-7,12,14,22-tetrol