Description

4,4''-Di-tert-Butyldiphenyliodonium p-Toluenesulfonate is a high-purity diaryliodonium salt, a class of compounds valued for their role as efficient photoacid generators (PAGs) and versatile arylating agents. This compound matters for its ability to initiate precise cationic polymerization and cross-linking reactions upon exposure to UV light or heat, enabling advanced material synthesis. It is primarily needed by manufacturers in the electronics, photoresist, and specialty polymer industries for applications requiring controlled reactivity and high-performance material properties.

Application

• Photoacid Generator (PAG) for Advanced Photoresists: A critical component in chemically amplified photoresists for semiconductor manufacturing and microelectronics.
• UV-Curable Coatings & Inks: Serves as an efficient cationic photoinitiator for coatings, inks, and adhesives that cure rapidly under UV light.
• Cationic Polymerization Catalyst: Initiates the polymerization of epoxides, vinyl ethers, and other monomers to produce high-performance polymers and composites.
• Arylating Agent in Organic Synthesis: Used in cross-coupling and functionalization reactions to introduce aryl groups into complex organic molecules.
• Fiber Optic Coatings: Employed in the production of protective, light-curable coatings for optical fibers.
• 3D Printing (Stereolithography): Acts as a photoinitiator in resin formulations for high-resolution additive manufacturing.

Basic Information

Product Name	4,4''-Di-tert-Butyldiphenyliodonium p-Toluenesulfonate
CAS No.	142342-33-4
Molecular Formula	C27H33IO3S
Molecular Weight	564.52 g/mol
Synonyms	Di(4-tert-butylphenyl)iodonium Tosylate; Bis(4-tert-butylphenyl)iodonium p-Toluenesulfonate; 4,4'-Di-tert-butyldiphenyliodonium Tosylate; DTBPIT; DTBPI-Ts; Iodonium, bis(4-(1,1-dimethylethyl)phenyl)-, 4-methylbenzenesulfonate; Photoacid Generator PAG; Diaryliodonium Tosylate Salt
EINECS	Contact for details

Quality Control

Our 4,4''-Di-tert-Butyldiphenyliodonium p-Toluenesulfonate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure compliance with exacting industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and performance consistency for your critical applications.

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 material is hygroscopic (moisture-sensitive) and strictly light-sensitive; therefore, containers must be kept tightly sealed and protected from all light exposure to maintain stability and purity. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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