Perfluorooctanesulfonyl nonionic surfactant CAS:1691-99-2 Molecular formula: C8F17 SO2 N (C2H5)C2H4OH Appearance: (20Ë?C) white or yellowish waxy solid (80Ë?C) amber liquid Melting point range: 55-65Ë?C Boiling point range: 115-120Ë?C/ 1mm Hg Density (80Ë?C): 1.71g/cc Application: non-ion fluoro surfactant, it is a versatile intermediate used to make fluoro surfactant and surface treating agent, an important material to synthysize Perfluoroalkyl acrylic ester.