disodium (Z)-4-[1-methyl-2-[(1-oxooctadec-9-enyl)amino]ethyl] 2-sulphonatosuccinate

4-[[1-Methyl-2-[((Z)-1-oxo-9-octadecenyl)amino]ethyl]oxy]-4-oxo-2-(sodiosulfo)butanoic acid sodium salt