High-Purity Benzenesulfonyl Chloride 99.5% for Pharma Intermediates
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If final sulfonamide rather than intermediate chloride
Finished sulfonamides classified in 2935; chloride remains synthetic intermediate in 2904.
If further processed into medicaments
Chapter 30 takes precedence over Chapter 29 for finished medicaments.
If diagnostic reagents containing this compound
Diagnostic reagents of 3822 supersede Chapter 29 classification.
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Import Tips & Compliance
• 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
Related Products under HTS 2904.10.08.00
Benzenesulfonyl Chloride 98% Technical Grade
Benzenesulfonyl chloride is a key intermediate in organic synthesis, used primarily for producing sulfonamides and dyes. This technical grade product, with 98% purity, falls under HTS 2904.10.08.00 as a sulfonated derivative of benzene containing only sulfo groups in the form of the sulfonyl chloride functional group.
Benzenesulfonyl Chloride Reagent Grade ACS
ACS reagent grade benzenesulfonyl chloride meets American Chemical Society standards for laboratory use in sulfonation reactions. Classified under HTS 2904.10.08.00 as a chemically defined sulfonated hydrocarbon derivative with the sulfonyl chloride group.
Stabilized Benzenesulfonyl Chloride with Hydroquinone
This stabilized form contains hydroquinone inhibitor to prevent polymerization during storage and transport. Falls under HTS 2904.10.08.00 per Chapter note (f) allowing stabilizers necessary for preservation without changing classification.
Benzenesulfonyl Chloride in Toluene Solution 20%
20% solution in toluene for safe handling in industrial sulfonation processes. Classified under HTS 2904.10.08.00 per Chapter note (e) as solvent dissolution for safety/transport, provided not particularly suitable for specific use.
Benzenesulfonyl Chloride with Emetic Additive for Safety
Contains emetic additive to prevent accidental ingestion, used in industrial settings. Remains under HTS 2904.10.08.00 per Chapter note (g) allowing safety identification additives.
Industrial Benzenesulfonyl Chloride Bulk Drum Pack
Bulk packaged in 440 lb drums for large-scale dye manufacturing. HTS 2904.10.08.00 as standard industrial grade chemically defined compound meeting Chapter 29 purity requirements.