J Acid Diazo Coupler from Canada
J Acid (2-amino-8-naphthol-6-sulfonic acid) is a critical coupler for azo dyes producing blue-violet shades on textiles. Included in additional U.S. note 3 products for HTS 2927.00.40.00 as part of diazo-/azo- chemistry intermediates. Meets chapter (a) as separate chemically defined organic compound.
Duty Rate — Canada → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Provide spectral analysis confirming structure matches note 3 specifications
• Use UN-approved chemical packaging; diazo intermediates pose reactivity hazards
• Avoid blending with diazonium salts pre-import; mixtures risk 3824 reclassification