Description

Bis(p-Methoxyphenyl)Iodonium Bromide is a high-purity diaryliodonium salt, a versatile and highly reactive chemical intermediate. Its primary value lies in its ability to act as a potent photoacid generator (PAG) and a source of aryl cations for advanced organic synthesis. This compound is essential for manufacturers and R&D laboratories in the photoresist, polymer chemistry, and pharmaceutical synthesis sectors, where precise and efficient cationic initiation is required.

Application

• Photoacid Generator (PAG) for Advanced Photoresists: A critical component in chemically amplified resists (CARs) used in semiconductor and microelectronics manufacturing for deep-UV (DUV) and extreme-UV (EUV) lithography.
• Cationic Photoinitiator for Polymerization: Initiates the UV-curing of epoxy resins, vinyl ethers, and other monomers in coatings, adhesives, inks, and fiber optics.
• Arylating Agent in Organic Synthesis: Serves as an efficient electrophilic source of the p-methoxyphenyl group for C–H and heteroatom functionalization reactions.
• Catalyst and Reagent in Cross-Coupling Reactions: Used in metal-catalyzed and metal-free coupling reactions to construct complex biaryl structures.
• Research & Development: A valuable tool in academic and industrial R&D for developing new synthetic methodologies and functional materials.

Basic Information

Product Name	Bis(p-Methoxyphenyl)Iodonium Bromide
CAS No.	19231-06-2
Molecular Formula	C14H14BrIO2
Molecular Weight	405.07 g/mol
Synonyms	Bis(4-methoxyphenyl)iodonium bromide; Di-p-anisyliodonium bromide; (4-Methoxyphenyl)(4-methoxyphenyl)iodonium bromide; 4,4'-Dimethoxydiphenyliodonium bromide; Iodonium, bis(4-methoxyphenyl)-, bromide; Photoacid generator PAG; Diaryliodonium salt
EINECS	Contact for details

Quality Control

Our Bis(p-Methoxyphenyl)Iodonium Bromide is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high chemical purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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 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
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Loss on Drying	< 1.0%

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