Showing structure for 3-hydroxy-4,5,5,10',14',16'-hexamethyl-18'-oxaspiro[oxolane-2,17'-pentacyclo[13.3.2.0¹,¹⁴.0²,¹¹.0⁵,¹⁰]icosane]-2'(11'),3',5',12'-tetraen-7'-one