bis[2-[ethyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl] hydrogen phosphate

N,N'-[Phosphinicobis(oxy-2,1-ethanediyl)]bis[N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-1-heptanesulfonamide]