Description

Triphenylsulfonium Chloride is a versatile and highly reactive organosulfur salt with significant industrial importance. Its primary value lies in its role as a highly efficient photoacid generator (PAG), a critical component in advanced photoresist formulations for the semiconductor and electronics industries. This compound is essential for manufacturers and R&D facilities involved in microelectronics, polymer chemistry, and advanced material synthesis.

Application

• Photoacid Generator (PAG) for Photoresists: A key component in chemically amplified resists (CAR) for deep-UV (DUV), extreme-UV (EUV), and electron-beam lithography in semiconductor manufacturing.
• Cationic Photoinitiator: Used to initiate the polymerization of epoxides, vinyl ethers, and other monomers in UV-curable coatings, inks, and adhesives.
• Catalyst in Organic Synthesis: Acts as a Lewis acid catalyst or a source of the phenyl cation in various Friedel-Crafts alkylation and acylation reactions.
• Research & Development: Employed in academic and industrial labs for studying reaction mechanisms, developing new photopolymerization systems, and creating functional materials.
• Polymer Modification: Used to functionalize polymers or as an initiator for the synthesis of specific block copolymers.

Basic Information

Item	Detail
Product Name	Triphenylsulfonium Chloride
CAS No.	10937-76-5
Molecular Formula	C18H15ClS
Molecular Weight	298.83 g/mol
Synonyms	Triphenylsulfonium chloride; Sulfonium, triphenyl-, chloride; TPS-Cl; Triphenylsulfonium chloride (TPSCI); Triphenylsulfonium chloride, 97%; (Triphenylsulfonio)chloride; Chlorotriphenylsulfonium; Triphenylsulfanylidene chloride
EINECS	234-704-6

Quality Control

Our Triphenylsulfonium Chloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and Karl Fischer titration for moisture content. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to ensure traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, minimize exposure to ambient light during handling.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	300 - 305 °C (dec.)
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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