Cationic Photoinitiator 261/η⁶-Isopropylbenzene Iron Hexafluorophosphate/CAS No. 32760-80-8

Technical Data Sheet (TDS)

Product Name

Cationic Photoinitiator 261

Chemical Name

η⁶-Isopropylbenzene Iron Hexafluorophosphate
(η⁶-Isopropylbenzene Ferrocene Hexafluorophosphate)

CAS No.

32760-80-8

Molecular Formula

—

Molecular Weight

560 g/mol

Appearance

Yellow liquid

Assay (Purity)

≥ 99.0%

Density

Not specified

Volatile Content (Max)

Not specified

Flash Point

Not specified

Product Description

Cationic Photoinitiator 261 is a high-efficiency cationic photoinitiator based on iron-arene complexes. Upon UV irradiation, it generates strong Brønsted acids capable of initiating cationic polymerization reactions. It is especially suitable for epoxy, vinyl ether, and oxetane systems.

Key Features

• High photosensitivity

• Excellent thermal and chemical stability

• Efficient initiation under UV light

• Low odor and good formulation compatibility

• Suitable for thick and pigmented coatings

Typical Applications

• UV-curable epoxy coatings

• UV inks and varnishes

• Adhesives

• Photoresists

• Electronic encapsulation and insulation materials