Description

2-Bromo-5-Chlorosulfonyl-Benzoic Acid is a high-purity, multi-functional aromatic sulfonyl chloride derivative that serves as a critical building block in advanced organic synthesis. Its unique structure, featuring both bromo and reactive chlorosulfonyl substituents, makes it an indispensable intermediate for constructing complex molecules with tailored properties. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing new 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: Used to create novel herbicides, fungicides, and plant growth regulators by introducing the sulfonyl moiety.
• Dyestuff and Pigment Manufacturing: Serves as a building block for producing sulfonated azo dyes and high-performance pigments.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymer chains for subsequent functionalization, enhancing material properties.
• Chemical Research & Development: A versatile reagent for exploring new reaction pathways and creating specialized chemical libraries in medicinal and materials chemistry.
• Ligand and Catalyst Design: Useful for synthesizing complex chelating ligands and organocatalysts used in asymmetric synthesis.

Basic Information

Product Name	2-Bromo-5-Chlorosulfonyl-Benzoic Acid
CAS No.	3285-31-2
Molecular Formula	C7H4BrClO4S
Molecular Weight	299.53 g/mol
Synonyms	5-(Chlorosulfonyl)-2-bromobenzoic acid; 2-Bromo-5-chlorosulfonylbenzoic acid; Benzoic acid, 2-bromo-5-(chlorosulfonyl)-; 2-Bromobenzene-1-carboxylic acid-5-sulfonyl chloride; 2-Bromo-5-(chlorosulfonyl)benzoic acid; 5-Chlorosulfonyl-2-bromobenzoic acid
EINECS	Contact for details

Quality Control

Every batch of 2-Bromo-5-Chlorosulfonyl-Benzoic Acid is manufactured and tested under a strict quality management system. Our products undergo rigorous quality testing, including advanced chromatographic methods, to ensure compliance with industry standards and customer specifications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

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 after opening to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.