Showing structure for 11-hydroxy-13-(2-{11-hydroxy-5,5,9-trimethyl-14,18-dioxo-15,17-dioxapentacyclo[9.5.2.0¹,¹⁰.0⁴,⁹.0¹²,¹⁶]octadecan-13-ylidene}ethylidene)-5,5,9-trimethyl-15,17-dioxapentacyclo[9.5.2.0¹,¹⁰.0⁴,⁹.0¹²,¹⁶]octadecane-14,18-dione