2-Sulfoanthraquinone from Canada
2-Sulfoanthraquinone contains a sulfonic acid group at position 2 of the anthraquinone molecule. Falls under HTS 2914.61.00.00 as a sulfonated quinone derivative explicitly covered by Chapter 29 heading provisions. Key intermediate for water-soluble anthraquinone dyes.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide acid value and sulfonation degree certification to prove chemical identity
• Ship as sodium salt if stabilized; declare both acid and salt forms accurately
• Confirm no dyeing formulation additives that would shift to Chapter 32 exclusion