Showing structure for 2-{4-hydroxy-13-[(2-hydroxyacetyl)oxy]-2,6,10,14,14-pentamethyl-16,17-dioxapentacyclo[13.2.2.0¹,⁹.0²,⁶.0¹⁰,¹⁵]nonadeca-8,18-dien-5-yl}-6-methyl-5-methylideneheptanoic acid