CAS No. :1691-99-2 Molecular formula: C12H10F17O3NS Appearance: 20 ° C a white or light yellow waxy solid 80 ° C amber liquid Melting range: 55-65 ° C Boiling range: 115-120 ° C/1mm Hg Density (80 ℃): 1.71g/cm3 Content: ≥ 80% Application: It is a kind of nonionic fluoro-containg and the intermediate preparing various of fluoro-containg surfactants and surface treating agent. In addition the important material synthesizing perfluoro alkyl acrylate.