Other perfluorooctane sulphonamides
Sulphonamides. > Other perfluorooctane sulphonamides > Other perfluorooctane sulphonamides
Duty Rate (from China)
Products classified under Tariff item 2935.50.00
N-Ethyl-N-(2-hydroxyethyl)perfluorooctane Sulfonamide
N-Ethyl-N-(2-hydroxyethyl)perfluorooctane sulfonamide is a chemically defined organic compound used as a reactive intermediate in the production of fluoropolymers. It contains a perfluorooctane sulfonamide core with an N-ethyl and N-hydroxyethyl substitution, qualifying it as an 'other perfluorooctane sulphonamide' under tariff item 2935.50.00.
N-Ethylperfluorooctane Sulfonamide
N-Ethylperfluorooctane sulfonamide (N-EtPFOSA) is a chemically defined perfluorooctane sulfonamide used as an intermediate in fluorosurfactant synthesis. Its structure, with an ethyl group on the sulfonamide nitrogen, places it squarely within the scope of 'other perfluorooctane sulphonamides' under tariff item 2935.50.00.
N-Ethylperfluorooctane Sulfonamide (EtFOSA)
N-Ethylperfluorooctane sulfonamide (EtFOSA) is a chemically defined perfluorooctane sulfonamide used as a degradation product marker and synthetic intermediate in PFAS research. As a separate chemically defined compound with a perfluorooctane sulfonamide structure, it falls under tariff item 2935.50.00 for 'other perfluorooctane sulphonamides'.
N-Methylperfluorooctane Sulfonamide
N-Methylperfluorooctane sulfonamide (N-MePFOSA) is a separate chemically defined compound used in manufacturing water- and oil-repellent coatings. Its methyl substitution on the sulfonamide nitrogen keeps it within the definition of 'other perfluorooctane sulphonamides' under tariff item 2935.50.00.
N-Methylperfluorooctane Sulfonamido Ethanol (MeFOSE)
N-Methylperfluorooctane sulfonamido ethanol (MeFOSE) is a key building block for producing fluorochemical polymers used in surface treatments. As a chemically defined perfluorooctane sulfonamide with an N-methyl and hydroxyethyl group, it falls under tariff item 2935.50.00 for 'other perfluorooctane sulphonamides'.
Perfluorooctane Sulfonamide (PFOSA)
Perfluorooctane sulfonamide (PFOSA) is the parent compound of the perfluorooctane sulphonamide family, used in analytical standards and research. As a separate chemically defined compound with a perfluorooctane sulfonamide structure, it falls squarely under tariff item 2935.50.00 for 'other perfluorooctane sulphonamides'.
Perfluorooctane Sulfonamide Potassium Salt
Perfluorooctane sulfonamide potassium salt is the potassium salt form of perfluorooctane sulfonamide, used in aqueous fluorosurfactant formulations. Per Chapter 29 Note 5(C)(1), inorganic salts of organic compounds are classified in the heading appropriate to the organic compound, so this salt falls under tariff item 2935.50.00 as an 'other perfluorooctane sulphonamide'.