CAS 88-51-7 2-Chloro-4-methyl-6-sulfanilic acid from China
Alternative naming for 2-Chloro-p-toluidine-5-sulfonic acid (CAS 88-51-7), an aromatic toluidine derivative with sulfonic acid group for enhanced solubility in azo pigment production. Precisely matches HTS 2921.43.90.20 due to its chemical definition as a toluidine salt derivative.
Duty Rate — China → United States
44%
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
9903.88.0325%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)
Import Tips
• Use consistent nomenclature (e.g
• IUPAC or CAS) across shipping docs to match HTS description; request advance ruling for synonym variants
• Monitor for anti-dumping duties on dye intermediates from certain origins