Fast Blue Base R Salt from Canada
Fast Blue Base R, a diazotizable salt of m-nitro-o-anisidine, falls under HTS 2922.29.06.00 as a fast color base per Chapter 29 note 2(h). Used in cold dyeing processes for stable blue hues in printing inks and textiles.
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
• Certify as diazonium salt for azo dyes to align with Chapter note 2(h) standards
• Use UN-approved packaging for unstable diazo salts to meet DOT hazardous material rules
• Document salt formation per note 2(C)(1) to classify with parent amino-compound