Description

Bis(3-Isopropyl-4-Methoxy-Phenyl)-Iodonium Tetrafluoroborate is a high-purity diaryliodonium salt, a key photoacid generator (PAG) used in advanced photoresist formulations. Its primary value lies in its ability to generate strong acids upon exposure to UV light, initiating precise cross-linking or deprotection reactions in polymer matrices. This compound is essential for manufacturers in the electronics, semiconductor, and advanced photopolymer industries, where it enables the production of high-resolution microcircuits, printing plates, and optical components.

Application

• Photoacid Generator (PAG) for Semiconductor Photoresists: A critical component in chemically amplified resists (CAR) for deep-UV (DUV), KrF, and ArF lithography processes in microchip fabrication.
• UV-Curable Coatings and Inks: Initiates rapid cationic polymerization for high-performance, scratch-resistant coatings, adhesives, and printing inks.
• Optical Fiber Production: Used in the UV-curing of protective coatings and cladding materials for telecommunications-grade optical fibers.
• Advanced 3D Printing (Stereolithography): Serves as a photoinitiator in vat polymerization systems for creating high-detail, functional prototypes and end-use parts.
• Printing Plate Manufacturing: Key ingredient in photopolymer plates for flexographic and letterpress printing, ensuring sharp image reproduction.
• Electronic Packaging Materials: Facilitates the patterning and curing of dielectric layers and solder masks in printed circuit board (PCB) manufacturing.

Basic Information

Item	Details
Product Name	Bis(3-Isopropyl-4-Methoxy-Phenyl)-Iodonium Tetrafluoroborate
CAS No.	156740-76-0
Molecular Formula	C20H26BF4IO2
Molecular Weight	512.13 g/mol
Synonyms	Bis(3-Isopropyl-4-methoxyphenyl)iodonium Tetrafluoroborate; (3-Isopropyl-4-methoxyphenyl)phenyliodonium Tetrafluoroborate; Diaryliodonium Tetrafluoroborate Salt; Iodonium, bis(3-isopropyl-4-methoxyphenyl)-, tetrafluoroborate(1-); Photoacid Generator PAG; UV Photoinitiator; Iodonium Salt PAG
EINECS	Contact for details

Quality Control

Our production of Bis(3-Isopropyl-4-Methoxy-Phenyl)-Iodonium Tetrafluoroborate adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability for critical applications. Every lot is analyzed to confirm high purity, low metallic impurities, and optimal photoactivity. Certificates of Analysis (COA) detailing assay, impurity profiles, and physical specifications are provided with each shipment. We support compliance with relevant industry frameworks for advanced material manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Photoactivity Test	Conforms to reference

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