1,4-Diaminoanthraquinone from Canada
Diamino substitution on anthraquinone maintains quinone classification under HTS 2914.61.00.00 despite nitrogen functions. Used in reactive blue dye synthesis.
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
• Amino group quantification via Kjeldahl nitrogen analysis required
• Dark purple color characteristic; colorimetry supports identity
• Prevent oxidation during storage affecting purity specs