Description

Diphenyliodonium Trifluoromethanesulfonate is a highly reactive diaryliodonium salt, widely recognized as a powerful photoacid generator (PAG) and catalyst. Its core value lies in its ability to efficiently generate strong acids upon exposure to light or heat, initiating critical polymerization and cross-linking reactions. This makes it an essential component for manufacturers in the electronics, photoresist, and advanced polymer industries seeking high-performance, reliable photoinitiators and cationic catalysts.

Application

• Photoacid Generator (PAG) for Advanced Photoresists: A key component in chemically amplified resists (CAR) for deep-UV (DUV) and extreme-UV (EUV) lithography in semiconductor and microelectronics fabrication.
• Cationic Photoinitiator for Polymerization: Initiates the ring-opening polymerization of epoxides, vinyl ethers, and other monomers under UV light, used in coatings, inks, and adhesives.
• Catalyst for Organic Synthesis: Employed as a versatile catalyst or reagent in C-H functionalization, arylation, and other transition-metal-free coupling reactions in pharmaceutical and fine chemical research.
• Cross-linking Agent for Polymers: Used to enhance the thermal and mechanical properties of specialty polymers and composites through acid-catalyzed cross-linking.
• Surface Modification and Grafting: Facilitates the covalent attachment of functional groups to material surfaces for improved adhesion, biocompatibility, or specific chemical functionality.

Basic Information

Product Name	Diphenyliodonium Trifluoromethanesulfonate
CAS No.	66003-76-7
Molecular Formula	C13H10F3IO3S
Molecular Weight	430.18 g/mol
Synonyms	Diphenyliodonium Triflate; Diphenyliodonium Trifluoromethanesulphonate; Iodonium, diphenyl-, trifluoromethanesulfonate; (Diphenyl-λ³-iodanyl) trifluoromethanesulfonate; Photoacid Generator PAG; DPIOTf; DPI-OTf
EINECS	Contact for details

Quality Control

Our Diphenyliodonium Trifluoromethanesulfonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for electronic and synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

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 light-sensitive; prolonged exposure to air, moisture, or light should be avoided to maintain stability and performance.

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	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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