Description

2-Chlorothiophenol is a versatile organosulfur compound featuring both a chlorine substituent and a thiol functional group. This unique structure makes it a valuable intermediate in the synthesis of more complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is primarily utilized by research and development chemists, process engineers, and manufacturers in fine chemical production. The compound's reactivity profile allows for selective transformations, enabling the construction of sulfur-containing heterocycles and active ingredients.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), especially those containing benzothiophene or thioether moieties.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the chlorothiophenol unit contributes to biological activity.
• Ligand and Catalyst Preparation: Serves as a precursor for metal-complexing ligands in catalytic systems and material science applications.
• Polymer Modification: Acts as a chain transfer agent or functional monomer in the synthesis of specialty polymers and resins.
• Organic Synthesis Reagent: Employed in nucleophilic aromatic substitution reactions and as a thiolating agent in various research and industrial processes.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of sulfur-based dyes and organic pigments.

Basic Information

Product Name	2-Chlorothiophenol
CAS No.	6320-03-2
Molecular Formula	C6H5ClS
Molecular Weight	144.62 g/mol
Synonyms	2-Chlorobenzenethiol; o-Chlorothiophenol; 2-Chlorophenyl mercaptan; 1-Chloro-2-mercaptobenzene; Benzenethiol, 2-chloro-; o-Chlorobenzenethiol; 2-Chlorothiophenol; (2-Chlorophenyl)thiol
EINECS	228-672-2

Quality Control

Our 2-Chlorothiophenol is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for synthetic applications. A Certificate of Analysis (COA) detailing specific results for purity, appearance, and relevant impurities is provided with every shipment. We are committed to consistent quality and supply reliability for our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C/59-77°F) under an inert atmosphere (e.g., nitrogen) to minimize oxidation. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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