N-Ethyl Perfluorooctane Sulfonamide with Stabilizer
This is N-ethyl perfluorooctane sulfonamide formulated with an added stabilizer for preservation during transport, maintaining its identity as a chemically defined organic compound. Classified under HTS 2935.20.00.00 per Chapter 29 note (f), as the stabilizer is necessary and does not change its general chemical use. Commonly used in producing water-resistant coatings and as a PFAS intermediate.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stabilizer renders it suitable for specific surfactant preparation
Additives making it particularly suitable for specific use exclude it from Chapter 29 per note (g), moving to prepared additives of 3812.
If imported as a salt of the sulfonamide
Organic salts classify with the parent compound, but if formed with inorganic bases, may fall under 2942 per Chapter note on salts.
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Import Tips & Compliance
• Document stabilizer composition in SDS to prove necessity for preservation per Chapter 29 note (f); excess additives risk reclassification
• Comply with TSCA Import Certification for PFAS; declare as new chemical if not on inventory
• Label containers clearly for safety/emetic additions under note (g) to avoid customs delays
Related Products under HTS 2935.20.00.00
N-Ethyl Perfluorooctane Sulfonamide (N-EtPFOSA)
N-Ethyl perfluorooctane sulfonamide is a chemically defined perfluoroalkyl sulfonamide compound used primarily as an intermediate in the synthesis of fluorochemical surfactants and repellents. It falls under HTS 2935.20.00.00 as a specific sulfonamide within Chapter 29, meeting the criteria for separate chemically defined organic compounds containing sulfur directly linked to carbon. This classification applies to its pure form, whether with stabilizers for transport or safety additives that do not alter its general use.
99% Pure N-EtPFOSA Technical Grade
High-purity N-ethyl perfluorooctane sulfonamide (99% pure) supplied as a technical grade chemical for industrial synthesis of fluoropolymers. It qualifies under HTS 2935.20.00.00 as a separate chemically defined sulfonamide, containing impurities within allowable limits per Chapter 29 note (a). Used in manufacturing oil-repellent textiles.
N-Ethyl Perfluorooctane Sulfonamide Ethanol Solution
N-Ethyl perfluorooctane sulfonamide dissolved in ethanol at standard transport concentration for safety reasons, remaining classifiable as the pure compound. Falls under HTS 2935.20.00.00 per Chapter 29 note (e), as the solvent is solely for transport and not specific use. Applied in formulating stain-resistant finishes.