Description

3-Bromo-5-Chloro-2-Methoxybenzenesulfonyl Chloride is a high-purity, multi-functional sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its reactive sulfonyl chloride group enables precise functionalization, making it essential for constructing complex molecular architectures with high selectivity. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of sulfonamide-based drug candidates, including potential enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and pesticides, leveraging its halogenated aromatic structure for bioactivity.
• Material Science Research: Employed in the creation of specialty polymers and advanced organic materials requiring sulfonyl linkages.
• Chemical Biology Probes: Acts as a reactive handle for labeling proteins or modifying biomolecules in proteomics and diagnostic research.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs for the production of bespoke compounds and small-molecule libraries.

Basic Information

Product Name	3-Bromo-5-Chloro-2-Methoxybenzenesulfonyl Chloride
CAS No.	885532-56-9
Molecular Formula	C7H5BrCl2O3S
Molecular Weight	328.0 g/mol
Synonyms	3-Bromo-5-chloro-2-methoxybenzenesulfonyl chloride; 2-Methoxy-3-bromo-5-chlorobenzenesulfonyl chloride; Benzenesulfonyl chloride, 3-bromo-5-chloro-2-methoxy-; 885532-56-9; 3-Bromo-5-chloro-2-methoxybenzene-1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 3-Bromo-5-Chloro-2-Methoxybenzenesulfonyl Chloride is manufactured and tested under a strict quality management system. We guarantee high chemical purity and consistency, with specifications tailored to meet the rigorous demands of research and cGMP-grade synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to ensure full traceability and compliance.

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). This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability and reactivity. Keep away from incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (HPLC Area %)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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