Showing structure for 4-[12-hydroxy-8,8,22,22-tetramethyl-5-(3-methylbut-2-en-1-yl)-14,19-dioxo-3,7,16,21-tetraoxaheptacyclo[16.4.1.0²,¹⁵.0²,²⁰.0⁴,¹³.0⁶,¹¹.0¹⁵,¹⁷]tricosa-4(13),5,9,11-tetraen-20-yl]-2-methylbut-2-enoic acid