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Diphenylamine

Diphenylamine is used as a chemical intermediate, stabilizer, and pesticide component. Falls under HTS 2921.49.4500 per additional U.S. note 3 for aromatic amine derivatives.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+131.0%137.5%
🇲🇽Mexico6.5%+103.5%110%
🇨🇦Canada6.5%+103.5%110%
🇩🇪GermanyFree+18.5%18.5%
🇯🇵JapanFree+21.0%21%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3808.91.30.00Lower: 42.5% vs 137.5%

If pesticide formulation containing >50% diphenylamine

Pesticide products classifiable in Chapter 38 regardless of chemical content.

2930.90.43Lower: 44% vs 137.5%

If thio-diphenylamine derivative

Organo-sulfur compounds containing amine groups classify in heading 2930.

3811.90.00.00Lower: 44% vs 137.5%

If used as anti-oxidant additive preparation

Antioxidant preparations for rubber classify under 3811.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Purity >98% typically required for Chapter 29 classification

• Technical grade vs. pesticide grade affects documentation requirements

• Declare all impurities; agricultural use may trigger FIFRA requirements