Showing structure for 6-[(1r,3r,5r,7s,10s,14r,15r,18r)-7-hydroxy-6,6,10,14,18-pentamethyl-13,17-dioxo-2-oxapentacyclo[9.7.0.0¹,³.0⁵,¹⁰.0¹⁴,¹⁸]octadec-11-en-15-yl]-2-methyl-4-oxoheptanoic acid