Description

3-Bromo-5-Chloro-Benzenesulfonyl Chloride is a high-purity, multi-functional sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual reactive sites, enabling precise chemical modifications for creating complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and pesticides with sulfonyl urea or sulfonamide moieties.
• Material Science: Building block for creating specialized polymers, dyes, and liquid crystals with specific electronic or optical properties.
• Chemical Research: Versatile reagent for introducing the benzenesulfonyl group into molecules for structure-activity relationship (SAR) studies.
• Cross-Coupling Reactions: Serves as a substrate in palladium-catalyzed coupling reactions (e.g., Suzuki, Buchwald-Hartwig) to create biaryl structures.

Basic Information

Product Name	3-Bromo-5-Chloro-Benzenesulfonyl Chloride
CAS No.	1049026-36-9
Molecular Formula	C6H3BrCl2O2S
Molecular Weight	290.96 g/mol
Synonyms	3-Bromo-5-chlorobenzenesulfonyl chloride; 1-Bromo-3-chloro-5-(chlorosulfonyl)benzene; Benzenesulfonyl chloride, 3-bromo-5-chloro-; 3-Chloro-5-bromobenzenesulfonyl chloride; (3-Bromo-5-chlorophenyl)sulfonyl chloride; 3-Bromo-5-chlorobenzene-1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 3-Bromo-5-Chloro-Benzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, confirming compliance with customer specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong bases, oxidizing agents, and moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.