p-Diazo-N,N-Dimethylaniline Zinc Chloride from Canada
Stabilized double salt used in instant photographic developers for rapid azo coupling in print materials. Falls under HTS 2927.00.25.00 as a photographic diazo compound per Chapter 29 coordination compound rules.
Duty Rate — Canada → United States
16.5%
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
• Classify under note 5(C)(3) for metal coordination; provide structural analysis if challenged
• Use UN-approved packaging for diazonium salt sensitivity to shock and heat
• Include batch purity certificates (>98%) to distinguish from industrial-grade impurities