9-[(E)-4-[(2S,3R,4R,5S)-5-[(2S,3S,4S,5S)-3-[9-[(E)-4-[(2S,3R,4R,5S)-3,4-dihydroxy-5-[[(2S,3S)-3-[(2S,3S)-3-hydroxybutan-2-yl]oxiran-2-yl]methyl]oxan-2-yl]-3-methylbut-2-enoyl]oxynonanoyloxy]-2,5-dihydroxy-4-methylhexyl]-3,4-dihydroxyoxan-2-yl]-3-methylbut-2-enoyl]oxynonanoic acid