Sulfanilic Acid from China
Sulfanilic acid (4-aminobenzenesulfonic acid) is a white crystalline powder classified under HTS 2921.42.22.00 as an aniline derivative and salt thereof, consisting of a chemically defined aromatic monoamine with a sulfonic acid group. It serves as a key intermediate in dye manufacturing and pharmaceutical synthesis.
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
• Verify purity ≥98% via Certificate of Analysis to confirm classification as chemically defined compound under Chapter 29
• Include SDS and REACH compliance docs; sulfonic acids may trigger hazardous material shipping requirements
• Avoid misclassification as sulfonated dye intermediate (3204) by ensuring no coloring properties