p-Toluidine-m-sulfonic Acid Sodium Salt from China
The sodium salt form of p-Toluidine-m-sulfonic acid, a water-soluble aromatic amine sulfonate under HTS 2921.43.9040 per Chapter 29 salt classification rules. Used in azo dye coupling processes and as a chemical intermediate.
Duty Rate — China → United States
41.5%
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
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
• Declare exact salt form and counterion (sodium) as organic salts classified with parent compound per note 3(C)
• Test for water content; solutions may require heading 29 note (d) justification for chemical purity
• Avoid retail packaging that could trigger Chapter 32 exclusion for coloring matter preparations