Perfluorooctane Sulfonamide (PFOSA) from Canada
The parent perfluorooctane sulfonamide (PFOSA) compound used in analytical standards and research. Falls squarely under HTS 2935.50.00.00 as the base structure for all 'other perfluorooctane sulfonamides'.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Include NMR spectra confirming perfluoroalkyl chain integrity in technical documentation
• Segregate from PFOA shipments due to different regulatory status under TSCA
• Use UN-approved packaging for corrosive liquids (UN 3265)