2-(4-Amino Phenyl)-6-Methyl Benzothiazole-7-Sulfonic Acid from China
Sulfonated benzothiazole derivative specifically listed under HTS 2934.20.25.00 containing amino phenyl substitution and sulfonic acid functionality. Used in azo dye coupling and pharmaceutical intermediate applications. Meets Chapter 29 definition for chemically defined heterocyclic compounds.
Duty Rate — China → United States
37.5%
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include NMR/HPLC spectra confirming sulfonic acid position and aromatic substitution pattern
• Label as 'technical grade' vs 'USP grade' affects documentation; pharma intermediates require GMP certs
• Sulfonic acid content must be declared; sodium salt form may require reclassification review