2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane from China
This symmetrical aromatic ketone peroxide functions as a high-temperature initiator for polyethylene crosslinking. Falls under HTS 2909.60.10.00 as a chemically defined aromatic peroxide specified in additional U.S. note 3 to section VI.
Duty Rate — China → United States
40.5%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Require manufacturer's test data on self-accelerating decomposition temperature for customs and transport
• Confirm chemical purity >99% to maintain classification under pure compounds vs mixtures
• Include emergency response information per 49 CFR for hazardous material imports