Fast Brown Base N from Canada
Fast Brown Base N, chemically defined aromatic monoamine, enables complex brown azo dyes with multivance fastness profiles. Classified HTS 2921.49.32.00 as fast color base meeting Chapter 29 purity and function criteria. Essential for leather and paper coloration industries.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide FTIR spectra matching published fast base reference standards for CBP review
• Ensure proper segregation from oxidizing agents during warehouse storage
• Avoid 'kit' classification by importing base separately from coupling components