Dodecanoic acid,(1R,6R,22R,27R)-1,27-diheptyl-9,19-dihydroxy-9,19-dioxido-14-oxo-6,22-bis[(1-oxotetradecyl)amino]-4,8,10,18,20,24-hexaoxa-13,15-diaza-9,19-diphosphaheptacosane-1,27-diyl ester, disodium salt