High-Purity Benzenesulfonyl Chloride 99.5% for Pharma Intermediates from Japan
Ultra-high purity grade used in pharmaceutical synthesis of sulfonamide drugs like sulfamethoxazole. HTS 2904.10.08.00 classification as pure chemically defined sulfonated benzene derivative.
Duty Rate — Japan → United States
15.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Pharma-grade requires GMP-equivalent documentation and full impurity profile
• TSCA certification mandatory; declare intended pharmaceutical intermediate use
• Glass-lined containers preferred to prevent reaction with metal packaging