Perfluoro-n-octanesulfonyl Fluoride from United States
Perfluoro-n-octanesulfonyl fluoride is a perhalogenated sulfonyl fluoride with the formula C8F17SO2F, where the acyclic fluorocarbon chain is fully fluorinated. It is classified under tariff item 2903.78.00 as a perhalogenated derivative of an acyclic hydrocarbon, with the sulfur function being secondary to the halogenation. This compound is a key intermediate for PFOS production.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm that the sulfur function does not exclude the product from heading 29.03
• Provide a detailed chemical analysis to CBSA
• Be aware of potential restrictions on PFOS precursors under Canadian environmental regulations