2-Mercaptobenzoic Acid from Germany
2-Mercaptobenzoic acid contains a thiol group ortho to carboxylic acid on benzene ring, classified under HTS 2930.90.4950 as other organo-sulfur acid. Direct C-S bonding qualifies for heading 2930; aromatic structure doesn't change classification. Used in synthesis of thiochromones and dyes.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Include HPLC purity (>98%) and tautomer confirmation (thiol vs thione form)
• Verify no sulfonation occurred during synthesis per exclusion note 6
• Package under nitrogen to prevent air oxidation during transport