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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%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

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

N,N'-Diphenyl-p-phenylenediamine from Canada — Import Duty Rate | HTS 2921.59.80