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Cumene Sulfonic Acid Sodium Salt from Mexico

This sodium salt of cumene sulfonic acid is an aromatic sulfonate with isopropyl substitution, classified in HTS 2904.10.32.00 per section VI note 3. Applied in hydrotropic formulations for cleaners.

Duty Rate — Mexico → United States

15.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Confirm compliance with additional U.S. note 3 concentration limits

Include NMR spectra verifying aromatic sulfo structure

Biodegradability testing recommended for EPA registration