2-Naphthylamine-6-sulfonic Acid (Schaeffer's Acid) from China
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 — China → United States
26.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
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