455305-52-9 Butanedioic acid, sulfo-, 4-dodecyl 1-(3,3,4,4,5,5,6,6,6-nonafluorohexyl)ester, sodium salt 496868-19-0 Butanedioic acid, sulfo-, 4-octyl1-(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl) ester, lithium salt 495418-77-4 Butanedioic acid, tetradecyl-, 1-(2-aminobutyl)4-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl) ester