4-Ethylbenzenesulfonic Acid from Japan
4-Ethylbenzenesulfonic acid features ethyl substitution on the aromatic sulfonate ring, qualifying for HTS 2904.10.32.00. Used in specialty surfactant synthesis.
Duty Rate — Japan → United States
15.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Rare isomer; provide synthetic route documentation
• Confirm single sulfo group via FTIR spectroscopy
• Small volume import; verify minimum order quantities