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
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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