Description

4-Chlorothiophenol is a versatile organosulfur compound featuring a thiol group and a chloro substituent on the aromatic ring. This dual functionality makes it a valuable building block and intermediate in the synthesis of more complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is primarily sought by industries involved in fine chemical synthesis, polymer modification, and material science.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those containing sulfur-based pharmacophores.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the chlorothiophenyl moiety imparts specific biological activity.
• Polymer Additive & Modifier: Acts as a chain transfer agent or a functional monomer to modify the properties of polymers and resins.
• Ligand & Catalyst Preparation: Serves as a starting material for synthesizing ligands used in metal-catalyzed coupling reactions and other catalytic processes.
• Material Science Research: Employed in the development of novel organic electronic materials, liquid crystals, and self-assembled monolayers (SAMs).
• Chemical Synthesis Reagent: Utilized in organic transformations such as nucleophilic aromatic substitution and as a thiol source in various reactions.

Basic Information

Product Name	4-Chlorothiophenol
CAS No.	106-54-7
Molecular Formula	C6H5ClS
Molecular Weight	144.62 g/mol
Synonyms	p-Chlorothiophenol; 4-Chlorobenzenethiol; 1-Chloro-4-mercaptobenzene; p-Chlorophenyl mercaptan; 4-Chlorothiophenol; 4-Chlorophenylthiol; (4-Chlorophenyl)thiol; 106-54-7
EINECS	203-407-5

Quality Control

Our 4-Chlorothiophenol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets high-purity standards suitable for demanding synthetic applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong oxidizing agents and bases. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
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.