Product Name: Perfluorobutanesulfonyl Fluoride CAS No: 375-72-4 Molecular Formula: C4F10O2S Molecular Weight: 302.09 Molecular Structure: Appearance: Colorless transparent liquid purity: 99%min Application 1.For the synthesis of fluorocarbon surfactants, fluor pesticides, dyes, polycarbonate processing dispersants, etc. 2.Antibacterial synergist.