Diphenylamine from Mexico
Diphenylamine is used as a chemical intermediate, stabilizer, and pesticide component. Falls under HTS 2921.49.4500 per additional U.S. note 3 for aromatic amine derivatives.
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
• Purity >98% typically required for Chapter 29 classification
• Technical grade vs. pesticide grade affects documentation requirements
• Declare all impurities; agricultural use may trigger FIFRA requirements