MeFOSA (N-Methylperfluorooctanesulfonamide) Powder from Mexico
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).
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include detailed spectroscopic data (NMR, MS) to authenticate structure during customs review
• Label containers with UN numbers for hazardous fluorochemical transport; comply with PFAS import notifications
• Prevent dust formation with anticaking agents only if necessary for transport per Chapter 29 note (f)