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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

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Rare isomer; provide synthetic route documentation

Confirm single sulfo group via FTIR spectroscopy

Small volume import; verify minimum order quantities