Santoflex IPPD Rubber Antioxidant from China

Santoflex IPPD (N-isopropyl-N'-phenyl-p-phenylenediamine) is an aromatic antidegradant and antioxidant used in tire rubber compounds to protect against ozone cracking and heat aging. Classified under HTS 3812.39.60.00 due to its modified aromatic structure and rubber stabilization function.

Duty Rate — China → United States

41.5%

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

Provide manufacturer specifications confirming CAS number and aromatic content for CBP verification

Check REACH compliance documentation for EU-origin materials entering US

Avoid common pitfall of misdeclaring concentration levels leading to duty recalculation