Glyoxal Diazo Dye Intermediate from Canada
Glyoxal serving as intermediate for azo dye coupler synthesis per Chapter 29 note (h). Pure acyclic dialdehyde qualifies for HTS 2912.19.30.00 classification. High purity essential for colorfast dye production.
Duty Rate — Canada → United States
13.7%
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
• Dye synthesis pathway documentation confirms note (h) diazo intermediate status
• Color development test results verify dye intermediate purity
• Avoid finished dye classification by declaring intermediate status