2921.59.80/N,N'-Diphenyl-p-phenylenediamine/Canada

N,N'-Diphenyl-p-phenylenediamine from Canada

N,N'-Diphenyl-p-phenylenediamine (DPPD) is a substituted aromatic polyamine used as an antioxidant in rubber. Classified in HTS 2921.59.80 as a derivative where phenyl substitutions maintain polyamine character under Chapter 29 amine-function rules.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Molecular weight and substitution pattern confirmation via MS/NMR

• Rubber accelerator end-use docs; avoid Chapter 38.12 classification

• Melting point specs (144-148°C) verify identity