2-Naphthylamine-6-sulfonic Acid (Schaeffer's Acid) from Germany
Schaeffer's acid is a key 2-naphthylamine derivative with a sulfonic acid substituent at position 6, falling under HTS 2921.45.60.00 due to additional U.S. note 3. Essential for manufacturing acid dyes and direct dyes.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide IUPAC name and synonyms on labeling to match HTS description exactly
• Comply with TSCA pre-manufacture notification if first import
• Segregate from oxidizing materials during transport per DOT regulations