N-Phenyl-1-Naphthylamine (Neozone D) from Mexico
N-Phenyl-1-naphthylamine is an aromatic amine derivative of diphenylamine used primarily as an antioxidant and stabilizer in rubber and tire production. It falls under HTS 2921.44.2000 as a derivative of diphenylamine specifically listed in additional U.S. note 3 to section VI for chemical products with controlled import volumes. This compound prevents oxidative degradation in polymers during manufacturing.
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
• Verify inclusion in additional U.S. note 3 to section VI quota list before importing; obtain necessary licenses from U.S
• International Trade Commission
• Ensure chemical purity documentation matches 99%+ specification to avoid reclassification
• Common pitfall: exceeding annual quota leads to higher duties under general rates