Description

(3-Chloropropyl)Diphenylsulfonium Tetrafluoroborate is a specialized onium salt, widely recognized as a highly effective photoacid generator (PAG). This compound matters for its crucial role in initiating cationic polymerization upon exposure to UV light, enabling precise and efficient cross-linking reactions. It is primarily needed by manufacturers in the electronics industry for advanced photoresist formulations, as well as by R&D chemists developing high-performance coatings, adhesives, and other UV-curable systems.

Application

• Photoresist Formulation: A key component in chemically amplified photoresists for semiconductor manufacturing and microelectronics.
• UV-Curable Coatings & Inks: Serves as a photoinitiator for cationic polymerization, providing excellent adhesion and chemical resistance in industrial and graphic arts applications.
• Advanced Adhesives: Enables rapid, on-demand curing of high-strength structural and optical adhesives.
• Fiber Optics & Optical Materials: Used in the production of UV-cured claddings and protective layers due to its efficient curing properties.
• 3D Printing (Stereolithography): Acts as a photoinitiator in resin formulations for high-resolution additive manufacturing.
• Polymer Synthesis & Modification: A valuable reagent for initiating controlled cationic ring-opening polymerization and other specialty polymer syntheses.

Basic Information

Product Name	(3-Chloropropyl)Diphenylsulfonium Tetrafluoroborate
CAS No.	33462-80-5
Molecular Formula	C15H16BClF4S
Molecular Weight	350.61 g/mol
Synonyms	Diphenyl(3-chloropropyl)sulfonium Tetrafluoroborate; (3-Chloropropyl)diphenylsulfonium Tetrakis(fluoranyl)boranuide; 3-Chloropropyl Diphenyl Sulfonium Tetrafluoroborate; Photoacid Generator PAG; Sulfonium Salt PAG; CPDPSTFB; UV Cationic Photoinitiator
EINECS	Contact for details

Quality Control

Our (3-Chloropropyl)Diphenylsulfonium Tetrafluoroborate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and Karl Fischer titration, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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