N-Ethyl-N-(2-hydroxyethyl)perfluorooctane Sulfonamide from China
This hydroxyethyl-substituted perfluorooctane sulfonamide serves as a reactive intermediate for fluoropolymer synthesis. It qualifies under HTS 2935.50.00.00 as 'other perfluorooctane sulfonamides' meeting Chapter 29's chemically defined organic compound criteria.
Duty Rate — China → United States
112.5%
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
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Label containers with GHS corrosive pictograms due to sulfonamide acidity
• Provide HPLC purity certificates (>98%) to distinguish from technical grade mixtures
• Declare exact carbon chain length (C8) to prevent confusion with shorter-chain PFAS analogs