p-Isopropoxydiphenylamine (UOP 288) from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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