5-Dodecenoic acid,(1R,27R)-1,27-diheptyl-9,19-dihydroxy-9,19-dioxido-14-oxo-6,22-bis[[(3R)-1-oxo-3-[[(5Z)-1-oxo-5-dodecenyl]oxy]tetradecyl]amino]-4,8,10,18,20,24-hexaoxa-13,15-diaza-9,19-diphosphaheptacosane-1,27-diylester, disodium salt, (5Z,5'Z)-