Description

4-Bromo-3-Chlorosulfonyl-Benzoic Acid Ethyl Ester is a high-purity, multi-functional organic intermediate designed for advanced chemical synthesis. This compound is valued for its reactive chlorosulfonyl and ester functional groups, which enable precise derivatization in complex molecular construction. It is primarily sought after by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of potential drug candidates, particularly those requiring sulfonamide or benzoic acid ester motifs.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its halogen and sulfonyl chloride reactivity.
• Material Science Research: Serves as a precursor for creating specialized monomers or functional polymers with specific electronic or surface properties.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes and tags for studying biological systems and enzyme activity.
• Custom Synthesis & Contract Manufacturing: An essential reagent for fine chemical manufacturers offering bespoke synthesis services to the life sciences sector.

Basic Information

Product Name	4-Bromo-3-Chlorosulfonyl-Benzoic Acid Ethyl Ester
CAS No.	1155911-23-1
Molecular Formula	C9H8BrClO4S
Molecular Weight	327.58 g/mol
Synonyms	Ethyl 4-Bromo-3-(chlorosulfonyl)benzoate; Benzoic acid, 4-bromo-3-(chlorosulfonyl)-, ethyl ester; 3-(Chlorosulfonyl)-4-bromobenzoic Acid Ethyl Ester; 4-Bromo-3-chlorosulfonylbenzoic Acid Ethyl Ester; Ethyl 4-Bromo-3-chlorosulfonylbenzoate; 1155911-23-1; 4-Bromo-3-(chlorosulfonyl)benzoic acid ethyl ester
EINECS	Contact for details

Quality Control

Our production of 4-Bromo-3-Chlorosulfonyl-Benzoic Acid Ethyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with customer specifications and industry best practices for fine chemical 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). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed and away from moisture and direct light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm

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