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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