Showing structure for 3,15-dihydroxy-16-[5-hydroxy-8-(3-hydroxy-4,6-dimethyloct-6-en-2-yl)-10-methoxy-3,9-dimethyl-1,7-dioxaspiro[5.5]undecan-2-yl]-14-methylheptadeca-4,6,8,10,12-pentaenoic acid