Showing structure for 5,16-dihydroxy-6-(1-hydroxy-4-methylpentyl)-2,6,13,17,17-pentamethyl-7-oxapentacyclo[10.8.0.0²,⁹.0⁵,⁹.0¹³,¹⁸]icosa-1(20),11-dien-8-one