Description

Phenyl-Sulfonium Chloride is a specialized organosulfur compound with a sulfonium cation core. This chemical is valued for its role as a versatile intermediate and reagent in advanced organic synthesis and materials science. It is primarily utilized by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for sulfur-containing drug candidates.
• Photoacid Generator (PAG): Serves as a critical component in photoresist formulations for advanced semiconductor manufacturing and microelectronics.
• Polymerization Catalyst/Initiator: Used as a catalyst or co-initiator in cationic polymerization reactions for producing specialty resins and coatings.
• Agrochemical Synthesis: An intermediate in the development of new herbicides, fungicides, and plant growth regulators.
• Organic Synthesis Reagent: Employed as a methylthiolation or phenylthiolation agent in various carbon-heteroatom bond-forming reactions.
• Ligand and Catalyst Precursor: Used to prepare sulfonium-based ligands or as a precursor for generating reactive sulfur species in catalytic cycles.
• Materials Science Research: Investigated for its properties in ionic liquids, electrolytes, and other advanced functional materials.

Basic Information

Product Name	Phenyl-Sulfonium Chloride
CAS No.	643767-79-7
Molecular Formula	C12H11SCl
Molecular Weight	222.73 g/mol
Synonyms	Phenylmethylsulfonium Chloride; Methyl(phenyl)sulfonium Chloride; Sulfonium, methylphenyl-, chloride; Phenyl Methyl Sulfonium Chloride; (Methylsulfonio)benzene Chloride; Benzene, (methylsulfonio)-, chloride; Tropylium analog sulfonium salt
EINECS	Contact for details

Quality Control

Our Phenyl-Sulfonium Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We adhere to relevant industry standards for fine chemical intermediates. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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