4,4'-Diaminobenzanilide from Mexico
4,4'-Diaminobenzanilide is an aromatic polyamine amide derivative used in polymer synthesis. HTS 2921.59.80 captures it as an 'other' polyamine derivative, where the amine functions predominate over amide per Chapter 29 classification hierarchy.
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
• FTIR spectrum showing primary amine peaks vs amide carbonyl for function priority
• Avoid 'polyamide' description triggering Chapter 39 confusion
• Intermediate for aramids; specify not finished fiber (Chapter 54)