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Diclofenac Sodium

Diclofenac sodium, an NSAID for pain and inflammation, is classified under HTS 2933.99.55 as its organic base is a nitrogen-heterocyclic aromatic compound. The salt form follows the base per chapter note on inorganic salts.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+12.5%19%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

2942.00.50.00Higher: 137.5% vs 19%

If coordination complex formation suspected

Chapter note (C)(3) directs metal-organic coordination compounds to last numerical heading.

3002.90Lower: 12.5% vs 19%

If for immunological/vaccine adjuvant use

Excluded from Chapter 29 per note (e); shifts to sera/products of Chapter 30.

2934.99.90.01Higher: 112.5% vs 19%

If nucleic acid derivative emphasized

Different heterocyclic subcategory for non-nitrogen only heteroatoms.

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

• Provide salt equivalence calculations and base structure confirmation for salt classification rule

• Ensure GMP certification and bioequivalence data for FDA prior notice