Description

4-Octyloxydiphenyliodoniumhexafluoroantimonate is a high-purity photoacid generator (PAG) and cationic polymerization initiator. This compound is critical for initiating rapid and efficient cross-linking reactions upon exposure to UV light or other energy sources. It is essential for manufacturers in the electronics, advanced coatings, and photopolymer industries requiring precise and reliable photo-curing performance.

Application

• Photoacid Generator (PAG) for Advanced Photoresists: A key component in chemically amplified resists (CAR) for semiconductor manufacturing and microelectronics lithography.
• UV-Curable Coatings and Inks: Initiates cationic polymerization for durable, scratch-resistant coatings, printing inks, and adhesives that cure rapidly under UV light.
• Fiber Optic Coatings: Used in the production of protective, low-stress coatings for optical fibers.
• 3D Printing (Stereolithography - SLA): Serves as a photo-initiator for high-resolution, rapid prototyping resins.
• Dental Composites: Facilitates the light-curing process for durable dental restorative materials and sealants.
• Optical Lens Production: Enables the production of precision optical elements through photo-induced polymerization of monomers.
• Electronic Encapsulants and Potting Compounds: Provides reliable curing for protective materials used in electronic component assembly.

Basic Information

Product Name	4-Octyloxydiphenyliodoniumhexafluoroantimonate
CAS No.	121239-74-5
Molecular Formula	C20H26F6IO2Sb
Molecular Weight	662.87 g/mol
Synonyms	4-Octyloxydiphenyliodonium Hexafluoroantimonate; (4-Octyloxyphenyl)phenyliodonium Hexafluoroantimonate; Iodonium, (4-octyloxyphenyl)phenyl-, hexafluoroantimonate(1-); Diphenyliodonium Hexafluoroantimonate Derivative; Photoacid Generator OPDPH; UV Photoinitiator 121239-74-5; OPDPH; Iodonium Salt Photoinitiator
EINECS	Contact for details

Quality Control

Our 4-Octyloxydiphenyliodoniumhexafluoroantimonate is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and Karl Fischer titration for moisture content, to ensure consistent performance and high purity suitable for sensitive photochemical applications. A detailed Certificate of Analysis (COA) is provided with each shipment.

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 light-sensitive; ensure containers are sealed under 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 reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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