Description

4-Bromo-2-Chlorobenzenesulfonyl Chloride is a high-purity sulfonyl chloride derivative, a key reactive intermediate in advanced organic synthesis. Its value lies in its dual functionality, serving as a versatile building block for introducing the sulfonamide or sulfonate moiety into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of novel herbicides, fungicides, and pesticides where the sulfonyl group is integral to biological activity.
• Dyestuff and Pigment Manufacturing: Serves as a key intermediate for creating sulfonated dyes and specialty pigments with enhanced properties.
• Polymer Chemistry: Employed in the modification of polymers and the synthesis of specialty monomers to impart specific functional characteristics.
• Chemical Research & Development: A valuable reagent for medicinal chemistry and process chemistry in exploring new synthetic pathways.
• Ligand and Catalyst Preparation: Used to synthesize complex ligands and organocatalysts for asymmetric synthesis and other catalytic processes.

Basic Information

Product Name	4-Bromo-2-Chlorobenzenesulfonyl Chloride
CAS No.	351003-52-6
Molecular Formula	C6H3BrCl2O2S
Molecular Weight	290.96 g/mol
Synonyms	2-Chloro-4-bromobenzenesulfonyl chloride; 4-Bromo-2-chlorobenzene-1-sulfonyl chloride; 1-Bromo-3-chloro-4-(chlorosulfonyl)benzene; Benzenesulfonyl chloride, 4-bromo-2-chloro-; 4-Bromo-2-chlorophenylsulfonyl chloride; 2-Chloro-4-bromophenylsulfonyl chloride
EINECS	Contact for details

Quality Control

Our 4-Bromo-2-Chlorobenzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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