Thiosalicylic Acid from China
Thiosalicylic acid (2-mercaptobenzoic acid) is an aromatic organo-sulfur compound with both thiol and carboxylic acid groups, classified under HTS 2930.90.4950. Meets all Chapter 29 criteria for chemically defined sulfur-carbon compounds. Used as rubber accelerator intermediate and analytical reagent.
Duty Rate — China → United States
29.2%
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
• Provide melting point range (165-170°C) confirmation for authenticity
• Include batch analysis showing <0.5% disulfide impurity
• Declare intended rubber accelerator use doesn't affect bulk chemical classification