Perfluorooctane Sulfonyl Fluoride (PFOSF) from Canada
Perfluorooctane sulfonyl fluoride (PFOSF) is a perfluorinated organic compound with the formula C8F17SO2F, classified under HTS 2904.36.00.00 as a sulfonated and halogenated derivative of hydrocarbons. It serves as a key intermediate in synthesizing perfluorooctane sulfonic acid salts and other fluorochemicals used in surface treatments.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify compliance with EPA and TSCA regulations on PFAS chemicals, as PFOSF is subject to import notifications and restrictions
• Provide detailed chemical purity certificates and Safety Data Sheets (SDS) to customs for proper classification
• Avoid misclassification as a finished surfactant; ensure documentation specifies it as the pure sulfonyl fluoride