4-Amino-1-naphthalenesulfonic Acid from Germany
4-Amino-1-naphthalenesulfonic acid is a derivative of 1-naphthylamine with a sulfonic acid group attached, classified under HTS 2921.45.90 as an 'other' aromatic monoamine derivative and salt thereof. It is primarily used as an intermediate in the production of azo dyes and pigments.
Duty Rate — Germany → 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
• Provide detailed chemical composition and CAS number (84-86-6) on commercial invoice for proper HTS verification
• Obtain SDS and ensure compliance with TSCA registration for US import of this dye intermediate
• Verify purity levels as impurities may affect classification; common pitfall is mislabeling as finished dye (Chapter 32)