N-Ethylperfluorooctane Sulfonamide from Canada
N-Ethylperfluorooctane sulfonamide (N-EtPFOSA) is a chemically defined perfluorooctane sulfonamide used primarily as an intermediate in the synthesis of fluorosurfactants. It falls under HTS 2935.50.00.00 as it is specifically listed among other perfluorooctane sulfonamides, which are organo-sulfur compounds with the characteristic sulfonamide group.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide detailed chemical analysis certificates confirming perfluorooctane sulfonamide structure to avoid misclassification under general sulfonamides
• Include safety data sheets (SDS) highlighting PFAS properties due to strict environmental import regulations
• Verify stabilizer content does not exceed chapter note limits to prevent reclassification as formulated mixtures