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