Description

Tris-(4-Chlorophenyl)-Sulfonium Bromide is a specialized organosulfur salt widely used as a high-performance photoacid generator (PAG). This compound is critical for initiating precise chemical reactions upon exposure to specific light wavelengths, enabling advanced manufacturing processes. It is essential for industries requiring ultra-fine patterning and high-resolution imaging, such as electronics and advanced material synthesis.

Application

• Photoacid Generator (PAG) in Advanced Photoresists: A key component in chemically amplified resists for deep-UV (DUV) and extreme-UV (EUV) lithography in semiconductor and microelectronics fabrication.
• Cationic Photoinitiator for Polymerization: Used to initiate the cross-linking and curing of epoxy resins, vinyl ethers, and other monomers in UV-curable coatings, inks, and adhesives.
• Chemical Amplification Systems: Employed in the production of high-density printed circuit boards (PCBs) and other micro-patterned electronic components.
• Research & Development: Serves as a reagent in organic synthesis and materials science research for developing new light-sensitive polymeric systems.
• Specialty Chemical Synthesis: Acts as an intermediate or catalyst in the synthesis of other complex sulfonium-based compounds and functional materials.

Basic Information

Product Name	Tris-(4-Chlorophenyl)-Sulfonium Bromide
CAS No.	125428-43-5
Molecular Formula	C18H12Cl3BrS
Molecular Weight	462.61 g/mol
Synonyms	Tris(p-chlorophenyl)sulfonium Bromide; (4-Chlorophenyl)diphenylsulfonium Bromide (isomer); Tris(4-chlorophenyl)sulfanium Bromide; Photoacid Generator PAG; Sulfonium, tris(4-chlorophenyl)-, bromide; TPS-Br; Triphenylsulfonium Bromide derivative
EINECS	Contact for details

Quality Control

Our Tris-(4-Chlorophenyl)-Sulfonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for lithographic and polymer applications. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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