Showing structure for n-[(2r)-2-(acetyloxy)-3-{n-[(3z,6z,18z,21z)-24-{n-[(2s)-2-(acetyloxy)-3-[(1-hydroxyethylidene)amino]propyl]acetamido}tetracosa-3,6,18,21-tetraen-1-yl]acetamido}propyl]ethanimidic acid