1-Naphthylamine-4,8-disulfonic Acid from Mexico
This disulfonic acid derivative of 1-naphthylamine features two sulfonic acid groups, qualifying under HTS 2921.45.60.00 per additional U.S. note 3 to section VI. Used primarily as a dye intermediate in textile and leather industries.
Duty Rate — Mexico → United States
16.5%
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
• Include detailed chemical structure and CAS number on commercial invoice for CBP verification
• Package in UN-approved containers suitable for corrosive liquids/solids
• Maintain records proving industrial intermediate use to avoid end-use reclassification