4-Ethylbenzenesulfonic Acid from Mexico
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 — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 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