Diphenyliodonium perfluoro-1-butanesulfonate
Diphenyliodonium perfluoro-1-butanesulfonate (CAS: 194999-82-1) is a highly effective cationic photoinitiator and photoacid generator. With a molecular weight of 580.20, this compound is crucial for initiating photopolymerisation processes. Its electronic grade purity makes it suitable for advanced applications in microelectronics and materials science, where precise control over polymerisation is essential.

Cationic Photoinitiator
This compound efficiently generates cations upon UV exposure, initiating the cationic polymerisation of epoxides and other monomers. It is particularly valuable in applications requiring fast curing speeds and high resolution.
Photoacid Generator (PAG)
As a PAG, it decomposes under UV light to release strong Brønsted acids. These acids can catalyse various chemical reactions, including deprotection steps in photolithography for micro/nanoelectronics.
Materials Science
Its properties are leveraged in the development of advanced materials, including specialised polymers and coatings that require precise photochemically controlled synthesis or modification.
Microelectronics
Used in the formulation of advanced photoresists for semiconductor manufacturing, enabling the creation of intricate patterns with high fidelity due to its ability to generate acids controllably.
| Molecular weight | 580.20 |
|---|---|
| Linear formula | (C6H5)2IC4F9SO3 |
| Assay | ≥99% |
| Grade | electronic grade |
| Solubility | PGMEA: ~65%γ-butyrolactone: ~75%ethyl lactate: ~75% |
| Application | Cationic photoinitiator. Photoacid generator. |
| Melting point | 78-84 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | λmax 203 nm |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Diphenyliodonium perfluoro-1-butanesulfonate used for?
+
Diphenyliodonium perfluoro-1-butanesulfonate (CAS: 194999-82-1) is used as a cationic photoinitiator and a photoacid generator (PAG). It is valuable in materials science, micro/nanoelectronics, and in the formulation of photoresists and polymerisation processes.
What is the CAS number and chemical formula for Diphenyliodonium perfluoro-1-butanesulfonate?
+
The CAS number is 194999-82-1. The linear formula is (C₆H₅)₂IC₄F₉SO₃.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Diphenyliodonium perfluoro-1-butanesulfonate in electronic grade with an assay of ≥99%. We do not represent this product as USP, BP, or EP grade.
How should Diphenyliodonium perfluoro-1-butanesulfonate be handled?
+
When handling Diphenyliodonium perfluoro-1-butanesulfonate, wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Refer to the Safety Data Sheet for comprehensive handling information. It is classified under WGK Germany 3.
How is this product packed, shipped, and exported?
+
This product is carefully packed according to international shipping regulations. Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals.
How can I request a sample or quote for Diphenyliodonium perfluoro-1-butanesulfonate?
+
To request a sample or a quote, please use the contact form on our website or contact our sales department directly. Please specify the quantity and your shipping destination.
▶ Related products

(11-Mercaptoundecyl)-N,N,N-trimethylammonium bromide
Micro / NanoElectronics

(11-Mercaptoundecyl)hexa(ethylene glycol)
C23H48O7S
Micro / NanoElectronics
(12-Phosphonododecyl)phosphonic acid
C12H28O6P2
Micro / NanoElectronics
(2,2,3,3,4,4,5,5,6,6,7,7,7-Tridecafluoroheptyl)oxirane
C9H5F13O
Micro / NanoElectronics
(2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-Heptadecafluorononyl)oxirane
C11H5F17O
Micro / NanoElectronics
(3-Chloropropyl)dimethoxymethylsilane
Cl(CH2)3Si(OCH3)2CH3
Micro / NanoElectronics
(3-Chloropropyl)trimethoxysilane
Cl(CH2)3Si(OCH3)3
Micro / NanoElectronics
(4-Bromophenyl)diphenylsulfonium triflate
C19H14BrF3O3S2
Micro / NanoElectronics▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis