1,4-Diaminoanthraquinone from Germany
Diamino substitution on anthraquinone maintains quinone classification under HTS 2914.61.00.00 despite nitrogen functions. Used in reactive blue dye synthesis.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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