Description

Triphenylsulfonium Bromide is a versatile and highly reactive organosulfur salt, primarily valued as a key photoacid generator (PAG) in advanced materials science. Its ability to generate strong acids upon exposure to light makes it indispensable for driving critical polymerization and cross-linking reactions. This compound is essential for manufacturers and R&D teams in the electronics, photoresist, and specialty polymer industries seeking high-purity, performance-grade chemical intermediates.

Application

• Photoacid Generator (PAG) for Photoresists: A critical component in chemically amplified resists (CARs) for deep-UV (DUV), extreme-UV (EUV), and electron-beam lithography in semiconductor and microelectronics fabrication.
• Cationic Photoinitiator: Used to initiate the ring-opening polymerization of epoxides, vinyl ethers, and other monomers in UV-curable coatings, inks, and adhesives.
• Catalyst in Organic Synthesis: Serves as a phase-transfer catalyst or a source of the triphenylsulfonium cation for various alkylation and polymerization reactions in fine chemical synthesis.
• Cross-linking Agent for Polymers: Facilitates the cross-linking of functional polymers under UV irradiation to enhance thermal and mechanical properties.
• Research & Development: Used in academic and industrial labs for developing new photopolymerization systems and studying reaction mechanisms.

Basic Information

Product Name	Triphenylsulfonium Bromide
CAS No.	3353-89-7
Molecular Formula	C18H15BrS
Molecular Weight	343.28 g/mol
Synonyms	Triphenylsulfonium bromide; Sulfonium, triphenyl-, bromide (1:1); TPS-Br; Triphenylsulfoniumbromid; Bromure de triphénylsulfonium; TPSBr; Photoacid Generator TPS-Br; (Triphenylsulfonio)bromide
EINECS	222-125-4

Quality Control

Our Triphenylsulfonium Bromide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR for structural confirmation, and ICP-MS for trace metal analysis, to ensure it meets the stringent requirements for electronic-grade and high-purity research applications. Certificates of Analysis (COA) with detailed specifications are provided to guarantee batch-to-batch consistency and performance reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air, moisture, or light should be avoided to maintain stability and efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	258 - 262 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1 %

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