Showing structure for 11-hydroxy-6,6,7,20,20-pentamethyl-18-(3-methylbut-2-en-1-yl)-3,8,19-trioxahexacyclo[14.4.1.0²,¹⁴.0²,¹⁸.0⁴,¹².0⁵,⁹]henicosa-4,9,11,14-tetraene-13,17-dione