2930.90.49.50/2-Mercaptopropionic Acid/Canada

2-Mercaptopropionic Acid from Canada

2-Mercaptopropionic acid (CH₃CH(SH)CH₂COOH) contains both carboxylic acid and thiol functions with sulfur directly bonded to carbon, classified under HTS 2930.90.4950 as other organo-sulfur acids. Meets Chapter 29 criteria for chemically defined compounds; the sulfur-carbon linkage distinguishes it from Chapter 28 inorganic acids. Used in chelating agents and metal extraction.

Duty Rate — Canada → United States

4.2%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Calculate with your customs valueVerify classification with AI

Import Tips

• Submit assay reports showing acid value and thiol content to confirm dual functionality required for heading 2930

• Ensure packaging prevents oxidation; stabilizers permitted under Chapter 29(g) for safety

• Distinguish from thioglycolic acid (specific subheading) in entry documentation

2-Mercaptopropionic Acid from Canada — Import Duty Rate | HTS 2930.90.49.50