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Sodium Isopropylnaphthalenesulfonate

This polynuclear aromatic sulfonate with isopropyl group fits HTS 2904.10.32.00 as specified in note 3. Excellent wetting agent for industrial cleaners.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.5%+37.5%43%
🇲🇽Mexico5.5%+10.0%15.5%
🇨🇦Canada5.5%+10.0%15.5%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

2904Same rate: 43%

If other aromatic derivatives

Different substitution patterns may fall outside note 3.

3402Lower: 16.2% vs 43%

If nonionic detergent formulations

Final formulations classify under chapter 34.

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

• Verify naphthalene structure compliance with chapter 29 notes

• HLB value 10-12 confirms surfactant properties

• Light-sensitive; use amber packaging