Showing structure for 21-hydroxy-2,4',8,10,19,19-hexamethyl-5,13,14,18-tetraoxaspiro[hexacyclo[18.3.2.0²,¹⁰.0⁴,⁹.0¹²,²³.0¹⁵,²¹]pentacosane-6,2'-oxolane]-5',17-dione