Description

Methyl 3-Bromo-5-(Chlorosulfonyl)Benzoate is a high-purity, multi-functional organic intermediate of significant importance in advanced chemical synthesis. This compound is valued for its dual reactive sites—the bromo and chlorosulfonyl groups—which enable precise and sequential functionalization, making it a versatile building block. It is primarily needed by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Serves as a precursor for creating specialized polymers, liquid crystals, and organic electronic materials.
• Chemical Derivatization: Employed in organic synthesis to introduce both bromo and sulfonyl chloride functionalities into complex molecular architectures.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects and scale-up production in fine chemical manufacturing.

Basic Information

Product Name	Methyl 3-Bromo-5-(Chlorosulfonyl)Benzoate
CAS No.	668261-21-0
Molecular Formula	C9H6BrClO4S
Molecular Weight	333.56 g/mol
Synonyms	3-Bromo-5-(chlorosulfonyl)benzoic acid methyl ester; Methyl 3-bromo-5-chlorosulfonylbenzoate; Benzoic acid, 3-bromo-5-(chlorosulfonyl)-, methyl ester; 668261-21-0; Methyl 3-bromo-5-sulfonyl chloride benzoate
EINECS	Contact for details

Quality Control

Our production of Methyl 3-Bromo-5-(Chlorosulfonyl)Benzoate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with each shipment, confirming compliance with customer specifications and supporting regulatory requirements for advanced intermediates.

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 sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Impurity (HPLC)	≤ 1.0%

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