Showing structure for 5,7,8-trihydroxy-15-(hydroxymethyl)-2,9,17-trimethyl-6,13-dioxapentacyclo[12.3.1.0⁵,¹⁷.0⁷,¹⁶.0¹⁰,¹⁵]octadeca-1(18),2-diene-4,12-dione