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

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

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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