p-Isopropoxydiphenylamine (UOP 288) from Mexico
p-Isopropoxydiphenylamine is a substituted diphenylamine derivative serving as a high-performance antioxidant for synthetic rubber and plastics. Classified under HTS 2921.44.2000 due to its inclusion in additional U.S. note 3 to section VI, which controls imports of certain rubber chemical intermediates. It provides thermal and oxidative stability in tire compounds.
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
• Monitor U.S
• ITC quota usage reports monthly to time imports effectively
• Provide CAS number (101-72-4 equivalent structure) and technical data sheets for customs verification
• Avoid misdeclaration as general chemical mixtures which triggers different Chapter 38 tariffs