Description

4-Bromo-3-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 a reactive sulfonyl chloride group and a carboxylic acid moiety, makes it an invaluable intermediate for constructing complex molecules with tailored properties. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel sulfonamide-based drugs, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in creating advanced herbicides, fungicides, and plant growth regulators that require specific halogenated benzoic acid scaffolds.
• Dyestuff and Pigment Production: Serves as a precursor for synthesizing specialized azo dyes and high-performance pigments.
• Polymer Chemistry: Functional monomer for introducing sulfonyl chloride groups into polymers, enabling further cross-linking or modification.
• Chemical Research & Development: Essential reagent in medicinal chemistry and material science research for exploring new molecular entities.
• Liquid Crystal & OLED Material Synthesis: Intermediate in the production of advanced electronic materials requiring precise halogen and sulfone functionality.

Basic Information

Product Name	4-Bromo-3-Chlorosulfonyl-Benzoic Acid
CAS No.	50803-23-1
Molecular Formula	C7H4BrClO4S
Molecular Weight	299.53 g/mol
Synonyms	3-(Chlorosulfonyl)-4-bromobenzoic Acid; 4-Bromo-3-chlorosulfonylbenzoic Acid; Benzoic acid, 4-bromo-3-(chlorosulfonyl)-; 4-Bromo-3-sulfonylchloride-benzoic Acid; 4-Bromo-meta-chlorosulfonylbenzoic Acid; 4-Bromo-3-(chlorosulfonyl)benzoic Acid; 3-Chlorosulfonyl-4-bromobenzoic Acid; 4-Bromobenzene-1,3-dicarboxylic acid 1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 4-Bromo-3-Chlorosulfonyl-Benzoic Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is subjected to comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to verify identity and purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use 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%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Single Impurity (HPLC)	≤ 0.5%

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