2,5-Dichloroaniline-4-sulfonic acid monosodium salt from Mexico
The monosodium salt of 2,5-dichloroaniline-4-sulfonic acid is explicitly listed under HTS 2921.42.36.00 per Chapter 29 salt classification rules. Commonly used in acid dye production.
Duty Rate — Mexico → United States
10%
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
• Salt content verification via assay required; sodium content affects exact match to HTS description
• Stable under normal transport but monitor for decomposition to free acid during storage
• EU REACH registration often required for EU-origin material; verify Annex XVII restrictions