Pentachlorothiophenol from Mexico
Pentachlorothiophenol (C6Cl5-SH) is a highly chlorinated aromatic thiol used as a synthetic intermediate for fungicides, lubricants, and rubber chemicals. Classified under HTS 2930.90.26.00 as named organo-sulfur compound with thiol group directly bound to aromatic carbon. Exclusively fits chapter 29 for pure chemical compounds.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Strict EPA TSCA notification required due to persistent organic pollutant concerns; provide 28-day premanufacture notice
• Use DOT Hazard Class 8 packaging for corrosive thiols
• Assay certificates must show >98% purity to maintain chapter 29 status