Description

4-Bromo-5-Chlorosulfonyl-2-Methoxy-Benzoic Acid is a high-purity, multi-functional chemical intermediate of significant importance in advanced organic synthesis. Its unique structure, featuring both a reactive chlorosulfonyl group and a carboxylic acid moiety, makes it a versatile building block 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.

Application

• Pharmaceutical Intermediate: 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 pesticides, leveraging its halogen and sulfonyl chloride functionalities.
• Dyestuff and Pigment Manufacturing: Serves as a building block for creating specialized dyes and pigments due to its aromatic benzoic acid core and substitutable groups.
• Material Science Research: Employed in the development of novel polymers, liquid crystals, and organic electronic materials.
• Custom Synthesis and Contract Manufacturing: A critical starting material for fine chemical companies offering bespoke synthesis services for client-specific target molecules.
• Chemical Research & Development: Utilized in academic and industrial R&D labs for exploring new organic reactions and creating compound libraries for screening.

Basic Information

Product Name	4-Bromo-5-Chlorosulfonyl-2-Methoxy-Benzoic Acid
CAS No.	72135-35-4
Molecular Formula	C8H6BrClO5S
Molecular Weight	329.55 g/mol
Synonyms	2-Methoxy-4-bromo-5-chlorosulfonylbenzoic acid; Benzoic acid, 4-bromo-5-(chlorosulfonyl)-2-methoxy-; 5-(Chlorosulfonyl)-4-bromo-2-methoxybenzoic acid; 4-Bromo-2-methoxy-5-sulfonylchloride-benzoic acid; 4-Bromo-5-chlorosulfonyl-o-anisic acid; 72135-35-4; 4-Bromo-5-chlorosulfonyl-2-methoxybenzoic acid
EINECS	Contact for details

Quality Control

Our 4-Bromo-5-Chlorosulfonyl-2-Methoxy-Benzoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. Keep away from incompatible materials such as strong bases 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	≤ 1.0%
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.