Description

[[(Chlorophenyl)Thio]Phenyl]Diphenylsulphonium Hexafluorophosphate(1-) is a specialized onium salt photoacid generator (PAG) with the CAS number 68156-11-6. This compound is critical for initiating cationic polymerization reactions upon exposure to UV light, enabling precise and efficient cross-linking. It is primarily needed by manufacturers in the electronics and advanced materials sectors for producing high-performance photoresists, coatings, and adhesives.

Application

• Photoresist Formulation: A key component in chemically amplified photoresists (CARs) for semiconductor manufacturing and microelectronics lithography.
• UV-Curable Coatings & Inks: Serves as a photoinitiator for cationic curing of epoxy-based coatings, inks, and varnishes, providing excellent adhesion and chemical resistance.
• Fiber Optics & Optical Materials: Used in the production of UV-curable claddings and protective layers for optical fibers and components.
• Advanced Composites: Facilitates the curing of matrix resins in fiber-reinforced composites for aerospace and automotive applications.
• Adhesive Systems: Enables rapid, low-temperature curing of high-strength structural and industrial adhesives.
• 3D Printing (Stereolithography): Acts as a photoinitiator in vat polymerization processes for creating high-resolution polymer parts.

Basic Information

Product Name	[[(Chlorophenyl)Thio]Phenyl]Diphenylsulphonium Hexafluorophosphate(1-)
CAS No.	68156-11-6
Molecular Formula	C24H17ClF6PS2+•PF6-
Molecular Weight	634.93 g/mol
Synonyms	[(4-Chlorophenyl)thio]phenyl-diphenylsulfonium hexafluorophosphate; (4-Chlorophenyl)(phenyl)(diphenyl)sulfonium hexafluorophosphate; CGI 1907; Photoacid Generator PAG 1907; Sulfonium, [(4-chlorophenyl)thio]phenyldiphenyl-, hexafluorophosphate(1-); Diphenyl-[(4-chlorophenyl)sulfanyl]phenylsulfonium hexafluorophosphate; UV Cure Catalyst 68156-11-6
EINECS	Contact for details

Quality Control

Our [[(Chlorophenyl)Thio]Phenyl]Diphenylsulphonium Hexafluorophosphate(1-) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure consistent performance and high-grade quality suitable for sensitive electronic applications. Certificates of Analysis (COA) with detailed specifications are available upon request.

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 material is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere such as nitrogen or argon to prevent degradation. Keep away from incompatible materials.

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	≤ 0.5%
Heavy Metals	≤ 10 ppm

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