Thiosalicylic Acid from Mexico
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 — Mexico → United States
14.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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