Description

4-Biphenylyl(2,4,6-Trimethoxyphenyl)Iodonium Trifluoromethanesulfonate is a high-purity diaryliodonium salt, a critical class of photoacid generators (PAGs) used in advanced photopolymerization processes. This compound matters for its exceptional efficiency in generating strong acids upon exposure to UV light, enabling precise and rapid curing in high-performance applications. It is essential for manufacturers in the electronics, advanced coatings, and photoresist industries who require reliable, high-sensitivity initiators for next-generation materials.

Application

• Photoacid Generator (PAG) for Advanced Photoresists: A key component in chemically amplified resists (CARs) for semiconductor manufacturing, enabling sub-micron patterning in microelectronics and integrated circuits.
• UV-Curable Coatings and Inks: Serves as a highly efficient cationic photoinitiator for the polymerization of epoxy and vinyl ether systems, used in protective coatings, graphic arts, and 3D printing resins.
• Fiber Optic Coatings: Employed in the rapid, low-temperature curing of protective claddings and coatings for optical fibers, ensuring durability and signal integrity.
• Adhesive Formulations: Used in light-curable adhesives for electronics assembly, medical devices, and optical bonding, providing fast curing and strong bonds.
• Lithographic Printing Plates: Facilitates the image-forming process in high-resolution plate production for commercial and packaging printing.
• Polymer Synthesis & Modification: Acts as an initiator for controlled cationic polymerizations in R&D and specialty polymer production.

Basic Information

Product Name	4-Biphenylyl(2,4,6-Trimethoxyphenyl)Iodonium Trifluoromethanesulfonate
CAS No.	1868173-47-0
Molecular Formula	C22H21F3IO6S
Molecular Weight	581.36 g/mol
Synonyms	(4-Biphenylyl)(2,4,6-trimethoxyphenyl)iodonium triflate; (4-Phenylphenyl)(2,4,6-trimethoxyphenyl)iodonium trifluoromethanesulfonate; Diaryliodonium Triflate Photoinitiator; Iodonium, (4-biphenylyl)(2,4,6-trimethoxyphenyl)-, trifluoromethanesulfonate; PAG; Photoacid Generator 1868173-47-0; Biphenyl iodonium salt
EINECS	Contact for details

Quality Control

Our 4-Biphenylyl(2,4,6-Trimethoxyphenyl)Iodonium Trifluoromethanesulfonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure high purity and consistent performance as a photoacid generator. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to maintain stability and performance. The original container should be kept sealed in a desiccator when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Meets ICH guidelines
Water Content (KF)	< 0.5%

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