Description

4-(Chlorosulfonyl)-3-Fluorobenzoic Acid is a high-value, multi-functional aromatic building block used in advanced organic synthesis. This compound is critical for introducing both a reactive sulfonyl chloride group and a carboxylic acid moiety into target molecules, enabling the creation of complex sulfonamides and other derivatives. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for the development of new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting enzymes via sulfonamide-based inhibitors.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and pesticides with enhanced activity and selectivity.
• Material Science: Building block for creating specialized polymers, liquid crystals, and advanced organic materials.
• Chemical Research: Versatile reagent in academic and industrial R&D for exploring new organic reactions and constructing complex molecular architectures.
• Dye and Pigment Industry: Intermediate in the production of specialized fluorinated dyes and colorants.

Basic Information

Product Name	4-(Chlorosulfonyl)-3-Fluorobenzoic Acid
CAS No.	244606-33-5
Molecular Formula	C7H4ClFO4S
Molecular Weight	238.62 g/mol
Synonyms	3-Fluoro-4-(chlorosulfonyl)benzoic Acid; Benzoic acid, 4-(chlorosulfonyl)-3-fluoro-; 4-Chlorosulfonyl-3-fluorobenzoic Acid; 3-Fluoro-4-chlorosulfonylbenzoic Acid
EINECS	Contact for details

Quality Control

Every batch of 4-(Chlorosulfonyl)-3-Fluorobenzoic Acid is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the material meets the precise requirements for advanced synthetic applications. A detailed Certificate of Analysis (COA) is supplied with each shipment, confirming identity, purity, and impurity profiles as determined by HPLC, NMR, and other relevant techniques.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. 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. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 10 ppm

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