Metanilamide from Mexico
Metanilamide (3-aminobenzenesulfonamide) is a specific sulfonamide isomer listed under HTS 2935.90.10.00 within Chapter 29's sulfonamides provision. This chemically defined compound features meta-positioned amino and sulfonamide groups on benzene. Used in biochemical research and as a sulfanilamide analogue.
Duty Rate — Mexico → United States
110%
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
9903.05.5510%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
• Laboratory/research end-use certification helps distinguish from bulk pharmaceutical intermediates
• Molecular formula (C6H8N2O2S) and NMR spectra documentation confirms structural identity
• Small quantity imports (<1kg) may qualify for simplified documentation procedures