4-Ethylbenzenesulfonic Acid

4-Ethylbenzenesulfonic acid features ethyl substitution on the aromatic sulfonate ring, qualifying for HTS 2904.10.32.00. Used in specialty surfactant synthesis.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.5%+35.0%40.5%
🇲🇽Mexico5.5%+10.0%15.5%
🇨🇦Canada5.5%+10.0%15.5%
🇩🇪Germany5.5%+10.0%15.5%
🇯🇵Japan5.5%+10.0%15.5%

Alternative Classifications

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

2904Same rate: 40.5%

If other halogenated derivatives

Halogen substitution creates compound derivatives.

2916.39.15.00Lower: 16.5% vs 40.5%

If aromatic carboxylic acids

Dual carboxy/sulfo functionality follows later numerical heading.

Not sure which classification is right?

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Import Tips & Compliance

Rare isomer; provide synthetic route documentation

Confirm single sulfo group via FTIR spectroscopy

Small volume import; verify minimum order quantities