Description

Methyl 4-(Chlorosulfonyl)-2-Fluorobenzoate is a high-purity, multi-functional chemical building block essential for advanced organic synthesis. This compound is valued for its reactive chlorosulfonyl and ester groups, which enable precise derivatization in complex molecular architectures. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for creating novel active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing fluorinated benzoate motifs.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides where the fluorobenzoate structure is required.
• Material Science Precursor: Serves as a monomer or cross-linking agent in the development of specialty polymers and advanced functional materials.
• Chemical Research & Development: A versatile reagent for constructing complex sulfonamide and sulfonate ester derivatives in academic and industrial labs.
• Liquid Crystal & OLED Material Synthesis: Employed in the creation of fluorinated aromatic components for electronic display technologies.

Basic Information

Product Name	Methyl 4-(Chlorosulfonyl)-2-Fluorobenzoate
CAS No.	1063733-16-3
Molecular Formula	C8H6ClFO4S
Molecular Weight	252.65 g/mol
Synonyms	2-Fluoro-4-(chlorosulfonyl)benzoic acid methyl ester; Methyl 2-fluoro-4-(chlorosulfonyl)benzoate; 4-(Chlorosulfonyl)-2-fluorobenzoic acid methyl ester; Benzoic acid, 4-(chlorosulfonyl)-2-fluoro-, methyl ester; Methyl 4-chlorosulfonyl-2-fluorobenzoate
EINECS	Contact for details

Quality Control

Every batch of Methyl 4-(Chlorosulfonyl)-2-Fluorobenzoate is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high-purity standards required for sensitive synthetic applications. A detailed Certificate of Analysis (COA) confirming identity, purity, and impurity profiles is supplied with each shipment.

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 must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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