Fast Green Base BN from China
Fast Green Base BN is an aromatic monoamine derivative used to manufacture green azo dyes with high fastness to perspiration and light. Classified as HTS 2921.49.32.00 fast color base as it constitutes a separate chemically defined compound per Chapter notes. Applied in printing pastes for synthetic fibers.
Duty Rate — China → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Ensure COA specifies diazotization temperature range confirming fast color base functionality
• Classify as UN3077 Environmentally Hazardous Substance if aquatic toxicity data requires
• Distinguish from Chapter 32 by absence of chromophore development in imported form