Description

4'-Chlorosulfonyl-Biphenyl-3-Carboxylic Acid Methyl Ester is a high-purity, multi-functional organic intermediate of significant importance in advanced chemical synthesis. Its unique bifunctional structure, featuring both a chlorosulfonyl and a methyl ester group, makes it a versatile building block for constructing complex molecular architectures. This compound is primarily sought after by R&D and production teams in the pharmaceutical and agrochemical sectors for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules with biphenyl or sulfonamide scaffolds.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of specialty polymers and advanced organic materials.
• Ligand and Catalyst Development: Employed in organic and organometallic chemistry to create novel ligands for catalytic systems.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for biochemical and diagnostic research.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects and scale-up production in fine chemical manufacturing.

Basic Information

Product Name	4'-Chlorosulfonyl-Biphenyl-3-Carboxylic Acid Methyl Ester
CAS No.	939761-08-7
Molecular Formula	C14H11ClO4S
Molecular Weight	310.75 g/mol
Synonyms	Methyl 4'-(chlorosulfonyl)-[1,1'-biphenyl]-3-carboxylate; [1,1'-Biphenyl]-3-carboxylic acid, 4'-(chlorosulfonyl)-, methyl ester; 4'-Chlorosulfonylbiphenyl-3-carboxylic acid methyl ester; Methyl 3-(4-chlorosulfonylphenyl)benzoate; Biphenyl-3-carboxylic acid, 4'-chlorosulfonyl-, methyl ester
EINECS	Contact for details

Quality Control

Every batch of 4'-Chlorosulfonyl-Biphenyl-3-Carboxylic Acid Methyl Ester is produced and tested under a strict quality management system. We ensure compliance with high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA), detailing purity, identity, and impurity profiles, is provided with each shipment to guarantee traceability and batch-to-batch consistency for your critical processes.

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 product is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions 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.