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%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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