Description

5-Chloro-2-Mercaptobenzoic Acid is a versatile sulfur-containing aromatic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique structure, featuring both a carboxylic acid and a thiol group on a chlorinated benzene ring, makes it a valuable precursor for synthesizing complex molecules. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: A key starting material for the synthesis of novel drug candidates, particularly in the development of enzyme inhibitors and receptor modulators.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, leveraging its reactive thiol and acid functionalities.
• Ligand and Chelating Agent Precursor: Serves as a precursor for creating specialized ligands used in catalysis and metal complexation processes.
• Material Science Research: Employed in the development of novel polymers, functionalized surfaces, and organic electronic materials.
• Chemical Research & Development: A versatile reagent for heterocyclic chemistry and the construction of complex sulfur-containing molecular architectures.

Basic Information

Product Name	5-Chloro-2-Mercaptobenzoic Acid
CAS No.	20324-50-9
Molecular Formula	C7H5ClO2S
Molecular Weight	188.63 g/mol
Synonyms	5-Chloro-2-sulfanylbenzoic acid; 2-Mercapto-5-chlorobenzoic acid; 5-Chlorosalicylic acid thiol; Benzoic acid, 5-chloro-2-mercapto-; 5-Chloro-2-thiosalicylic acid
EINECS	243-758-8

Quality Control

Our 5-Chloro-2-Mercaptobenzoic Acid is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

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 sensitivity to oxidation, it is recommended to handle under an inert atmosphere for long-term storage and to minimize headspace in opened containers.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	185 - 190 °C
Loss on Drying	≤ 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.