N-Methyl Perfluorooctane Sulfonamide
N-Methyl perfluorooctane sulfonamide (MeFOS) is a chemically defined organic compound featuring a perfluorinated carbon chain attached to a sulfonamide group with an N-methyl substituent. It falls under HTS 2935.10.00.00 as a specific sulfonamide compound within Chapter 29, meeting the criteria for separate chemically defined organic compounds.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as part of a formulated mixture or solution
Mixtures containing this compound exceed Chapter 29 scope and fall under prepared binders or chemical mixtures in heading 3824.
If the perfluorooctane moiety dominates classification
Perfluorinated hydrocarbons may shift to Chapter 29 sulfonated derivatives if sulfonamide not principal function.
If containing additional organo-sulfur functions beyond sulfonamide
Organo-sulfur compounds with other sulfur linkages to carbon classify in 2930 per chapter notes.
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The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify chemical purity and provide Certificates of Analysis (CoA) to confirm identity as N-methyl perfluorooctane sulfonamide for proper HTS classification
• Check REACH and TSCA compliance due to PFAS regulations; include safety data sheets (SDS) and ensure no prohibited impurities
• Avoid misclassification as mixtures; ship in drums suitable for chemical transport with stabilizers if needed per Chapter 29 notes
Related Products under HTS 2935.10.00.00
MeFOSA (N-Methylperfluorooctanesulfonamide) Powder
MeFOSA powder is the solid form of N-methyl perfluorooctane sulfonamide, a fluorinated sulfonamide used in specialty chemical synthesis. Classified under HTS 2935.10.00.00 as it is a separate chemically defined organic sulfonamide compound per Chapter 29 note (a).
Perfluoro-N-methyl-octanesulfonamide Technical Grade
Technical grade N-methyl perfluorooctane sulfonamide contains minimal impurities while remaining a separate chemically defined compound. It qualifies for HTS 2935.10.00.00 under Chapter 29 provisions allowing impurities in chemically defined organic compounds.
N-MeFOS Stabilized Solution 10% in Solvent
A 10% solution of N-methyl perfluorooctane sulfonamide in inert solvent, prepared solely for safe transport. Falls under HTS 2935.10.00.00 per Chapter 29 note (e) allowing solvent dissolution when not rendering product for specific use.
FOSA-MeN (N-Methyl-PFOS) Research Grade
High-purity research grade N-methyl perfluorooctane sulfonamide (FOSA-MeN) for laboratory synthesis. Classified specifically under HTS 2935.10.00.00 as the named sulfonamide compound in Chapter 29.