917618-32-7 Butanedioic acid, 2-sulfo-,1,4-bis[2-[[3,5,7,9,11,13,15-heptakis(acetyloxy)-1,1-dimethylpentadecyl]oxy]ethyl] ester, sodium salt (1:1) 917618-33-8 8-Hexadecanesulfonic acid,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,16-heptadecafluoro-,sodium salt (1:1)