Fast Red B Base Diazonium Salt from China
Fast Red B Base is a diazonium salt used as a diazo component in the production of azo dyes for textile and leather coloring. It falls under HTS 2927.00.40.00 as a product described in additional U.S. note 3 to section VI, which covers specific diazo- and azo-compounds regulated for dye manufacturing. This chemically defined organic compound reacts with couplers to form vibrant red dyes.
Duty Rate — China → United States
31.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify compliance with additional U.S. note 3 to section VI and obtain any required TSCA certifications for chemical import
• Include detailed chemical composition and Safety Data Sheets (SDS) in documentation to avoid customs delays
• Ensure stabilizers are only for safety/transport as per chapter note (g) to prevent reclassification