Description

Bis(4-(tert-Butyl)Phenyl)(Phenyl)Sulfonium Bromide is a high-purity, specialized sulfonium salt that serves as a critical photoacid generator (PAG) and catalyst in advanced material synthesis. Its primary value lies in its ability to efficiently generate strong acids upon exposure to light or heat, initiating precise polymerization and cross-linking reactions. This compound is essential for manufacturers in the electronics, photoresist, and specialty polymer industries who require reliable, high-performance initiators for cutting-edge applications.

Application

• Photoacid Generator (PAG) for Advanced Photoresists: A key component in chemically amplified resists (CAR) used for deep-UV (DUV), extreme-UV (EUV), and electron-beam lithography in semiconductor and microelectronics fabrication.
• Cationic Photoinitiator for UV-Curable Systems: Initiates the polymerization of epoxy resins, vinyl ethers, and oxetanes in coatings, inks, adhesives, and 3D printing resins, offering excellent shelf stability and rapid cure.
• Catalyst for Polymer Synthesis: Facilitates ring-opening polymerization (ROP) and other cationic polymerization processes to produce specialized polymers with controlled architectures.
• Cross-linking Agent for Specialty Polymers: Used to create high-performance, thermally stable, and chemically resistant network polymers for industrial and electronic applications.
• Intermediate for Organic Synthesis: Serves as a versatile building block or catalyst in the synthesis of complex organic molecules and functional materials.
• Research & Development: Employed in academic and industrial R&D labs for developing new photopolymerizable materials, lithographic processes, and catalytic systems.

Basic Information

Product Name	Bis(4-(tert-Butyl)Phenyl)(Phenyl)Sulfonium Bromide
CAS No.	753025-80-8
Molecular Formula	C26H31BrS
Molecular Weight	455.50 g/mol
Synonyms	Bis[4-(1,1-dimethylethyl)phenyl]phenylsulfonium bromide; (4-tert-Butylphenyl)phenyl(4-tert-butylphenyl)sulfonium bromide; Phenylbis(4-tert-butylphenyl)sulfonium bromide; Sulfonium, bis[4-(1,1-dimethylethyl)phenyl]phenyl-, bromide; Photoacid Generator PAG; Sulfonium salt photoinitiator; TBPS Bromide
EINECS	Contact for details

Quality Control

Our Bis(4-(tert-Butyl)Phenyl)(Phenyl)Sulfonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and tests for residual solvents and moisture, to ensure it meets the stringent requirements of advanced material applications. Certificates of Analysis (COA) with detailed specifications are provided for every shipment.

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; containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation and moisture absorption. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residual Solvents (GC)	Meets ICH guidelines

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