Description

4-Bromo-3-Chlorobenzenesulphonyl Chloride is a high-purity, multi-functional aromatic sulphonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual reactive sites, enabling precise and efficient introduction of the sulphonyl moiety into target molecules, which is essential for modulating physicochemical properties and biological activity. This compound is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Building block for developing new herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
• Dyestuff & Pigment Manufacturing: Used in the production of specialized dyes and pigments, particularly azo dyes, where the sulphonyl group improves solubility and fastness properties.
• Polymer Chemistry: Serves as a monomer or cross-linking agent in the synthesis of specialty polymers, such as polyelectrolytes and engineering plastics.
• Chemical Research & Development: A versatile reagent for method development, library synthesis, and exploring new chemical spaces in medicinal and materials chemistry.
• Ligand & Catalyst Design: Useful for synthesizing complex ligands and organocatalysts used in asymmetric synthesis and transition metal catalysis.

Basic Information

Product Name	4-Bromo-3-Chlorobenzenesulphonyl Chloride
CAS No.	874801-46-4
Molecular Formula	C6H3BrCl2O2S
Molecular Weight	289.96 g/mol
Synonyms	4-Bromo-3-chlorobenzene-1-sulfonyl chloride; 3-Chloro-4-bromobenzenesulfonyl chloride; 1-Bromo-2-chloro-4-(chlorosulfonyl)benzene; Benzenesulfonyl chloride, 4-bromo-3-chloro-; 4-Bromo-3-chloro-benzenesulfonyl chloride
EINECS	Contact for details

Quality Control

Our 4-Bromo-3-Chlorobenzenesulphonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and identity confirmation. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our commitment is to supply material that meets the stringent requirements of research and process development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

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