CAS 88-51-7 2-Chloro-4-methyl-6-sulfanilic acid from Germany
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 — 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
• 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