p,p'-Dicumyldiphenylamine from Mexico
p,p'-Dicumyldiphenylamine serves as a high-temperature stable antioxidant for synthetic elastomers and petroleum products. Classified in HTS 2921.44.2000 because it's enumerated in additional U.S. note 3 to section VI for quota-controlled diphenylamine derivatives. Its bulky cumyl groups prevent radical chain reactions effectively.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Use ISF filing 24 hours prior with precise chemical identification to avoid holds
• Provide end-use statements confirming industrial chemical application
• Watch for re-export documentation if quota goods diverted