Description

4-Chlorobenzyl Mercaptan is a versatile organosulfur compound featuring a reactive thiol (-SH) group attached to a chlorinated benzyl moiety. This unique structure makes it a valuable chemical intermediate and building block for synthesizing more complex molecules in advanced manufacturing. It is primarily sought by the pharmaceutical and agrochemical industries for the development of active ingredients, as well as by researchers in material science.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a thioether linkage or chlorobenzyl functionality.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where it acts as a precursor for compounds with specific biological activity.
• Ligand and Catalyst Preparation: Serves as a precursor for creating specialized ligands used in metal-catalyzed cross-coupling reactions and other catalytic processes.
• Polymer Modification: Employed as a chain transfer agent or functional monomer to introduce thiol groups into polymers, altering their physical and chemical properties.
• Organic Synthesis Reagent: A versatile reagent for introducing the 4-chlorobenzylthio group into target molecules through nucleophilic substitution or addition reactions.
• Research & Development: Utilized in academic and industrial R&D labs for exploring new synthetic pathways and developing novel chemical entities.

Basic Information

Item	Details
Product Name	4-Chlorobenzyl Mercaptan
CAS No.	6258-66-8
Molecular Formula	C7H7ClS
Molecular Weight	158.65 g/mol
Synonyms	(4-Chlorophenyl)methanethiol; p-Chlorobenzyl Mercaptan; 4-Chlorobenzylthiol; 1-Chloro-4-(mercaptomethyl)benzene; α-Mercapto-p-xylene chloride; p-Chlorobenzylthiol; (4-Chlorobenzyl)thiol; 4-Chloro-α-toluenethiol
EINECS	228-411-5

Quality Control

Our 4-Chlorobenzyl Mercaptan is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 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.