Description

3-Bromo-5-(Chlorosulfonyl)Benzoic Acid is a high-purity, multi-functional aromatic building block of significant importance in advanced organic synthesis. Its molecular structure, featuring both a reactive chlorosulfonyl group and a carboxylic acid moiety, makes it a versatile intermediate for constructing complex molecules. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs and other bioactive molecules.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides, leveraging its halogen and sulfonyl chloride functionalities.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers, liquid crystals, and advanced organic materials.
• Dye and Pigment Manufacturing: Employed in the synthesis of complex organic dyes and pigments due to its aromatic backbone and reactive sites.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes and labeling reagents for biochemical research.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects and contract research organizations (CROs) requiring precise, high-quality building blocks.

Basic Information

Item	Details
Product Name	3-Bromo-5-(Chlorosulfonyl)Benzoic Acid
CAS No.	1183308-29-3
Molecular Formula	C7H4BrClO4S
Molecular Weight	299.53 g/mol
Synonyms	5-Bromo-3-(chlorosulfonyl)benzoic acid; Benzoic acid, 3-bromo-5-(chlorosulfonyl)-; 3-Bromo-5-chlorosulfonylbenzoic acid; 1183308-29-3; 5-(Chlorosulfonyl)-3-bromobenzoic acid; 3-Bromo-5-sulfonyl chloride benzoic acid
EINECS	Contact for details

Quality Control

Our production of 3-Bromo-5-(Chlorosulfonyl)Benzoic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment, supporting compliance in GMP-aligned 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 after opening to prevent degradation. Keep away from incompatible materials such as strong bases, amines, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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