Acetohydroxamic Acid from China
Acetohydroxamic acid is a synthetic organic derivative of hydroxylamine used primarily as a pharmaceutical intermediate and urolithiasis treatment agent. It falls under HTS 2928.00.50.00 as an 'other' organic derivative of hydroxylamine, being a chemically defined compound not covered by more specific subheadings. This classification aligns with Chapter 29 notes for separate chemically defined organic compounds.
Duty Rate — China → United States
31.5%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify purity levels and provide Certificates of Analysis (CoA) to confirm chemical identity; ensure pharmaceutical-grade documentation if for drug use; avoid misclassification as quaternary ammonium compounds by confirming hydroxylamine structure