1-Naphthylamine-4,8-disulfonic Acid from Canada
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 — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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