Description

Tris(4-tert-Butylphenyl)Sulfonium CAS NO 241806-75-7 is a specialized sulfonium salt compound widely recognized for its role as a high-performance photoacid generator (PAG). This compound is critical in advanced photolithography processes, where it generates acid upon exposure to light to catalyze chemical reactions in photoresist polymers. It is an essential material for manufacturers in the semiconductor, microelectronics, and advanced polymer synthesis industries seeking precise pattern definition and high-resolution imaging.

Application

• Semiconductor Photolithography: A key component in chemically amplified photoresists (CARs) for deep ultraviolet (DUV) and extreme ultraviolet (EUV) lithography processes.
• Advanced Polymer Chemistry: Used as a cationic photoinitiator for the UV-curing of epoxy resins, vinyl ethers, and other cationically polymerizable systems.
• Microfabrication & MEMS: Enables high-resolution patterning for micro-electromechanical systems and other precision micro-engineering applications.
• Electronic Packaging Materials: Facilitates the production of high-performance dielectric films and protective coatings in electronic components.
• Specialty Adhesives & Coatings: Serves as an initiator in UV-curable adhesives, inks, and protective coatings requiring fast curing and excellent chemical resistance.
• Research & Development: Employed in academic and industrial R&D for developing next-generation photoresist materials and photo-polymerization techniques.

Basic Information

Product Name	Tris(4-tert-Butylphenyl)Sulfonium
CAS No.	241806-75-7
Molecular Formula	C30H39S+
Molecular Weight	431.70 g/mol
Synonyms	Tris(4-tert-butylphenyl)sulfonium; Tris(p-tert-butylphenyl)sulfonium; Tris(4-(1,1-dimethylethyl)phenyl)sulfonium; Sulfonium, tris(4-(1,1-dimethylethyl)phenyl)-; Photoacid Generator PAG; Sulfonium Salt Photoinitiator; TBPS; Tris(4-tert-butylphenyl)sulfonium cation
EINECS	Contact for details

Quality Control

Our Tris(4-tert-Butylphenyl)Sulfonium is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and ICP-MS for trace metal analysis, to ensure it meets the stringent requirements of the electronics industry. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing batch-to-batch consistency and performance reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep the 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%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 50 ppm
Sulfate (SO4)	≤ 50 ppm

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