Description

Sulfonium, (2-Hydroxy-3-Phenoxypropyl)Dimethyl-, (Oc-6-11)-Hexafluoroantimonate(1-) (9Ci) is a specialized sulfonium salt photoinitiator, a critical component in advanced cationic polymerization processes. Its primary value lies in its high reactivity and efficiency under UV light, enabling the rapid and controlled curing of epoxy-based resins and coatings. This compound is essential for manufacturers in the electronics, photoresist, and high-performance adhesive industries who require precise, low-temperature curing for sensitive substrates. The product is supplied with a CAS number of 428854-42-6.

Application

• UV-Curable Coatings and Inks: As a key photoinitiator for epoxy resins in industrial, graphic arts, and packaging applications.
• Electronics Manufacturing: For photoresists and dielectric materials in printed circuit board (PCB) fabrication and semiconductor packaging.
• Optical Fiber Coatings: Enabling fast, low-shrinkage curing of protective coatings on glass fibers.
• Structural Adhesives and Composites: Facilitating rapid curing of high-strength epoxy adhesives and matrix resins for composite materials.
• 3D Printing (Stereolithography): Acting as a photoinitiator in vat polymerization processes for high-resolution, functional prototypes and parts.
• Dental and Medical Materials: Used in light-curable dental composites, sealants, and biocompatible device coatings.

Basic Information

Item	Details
Product Name	Sulfonium, (2-Hydroxy-3-Phenoxypropyl)Dimethyl-, (Oc-6-11)-Hexafluoroantimonate(1-) (9Ci)
CAS No.	428854-42-6
Molecular Formula	C17H20F6O2SSb
Molecular Weight	538.16 g/mol
Synonyms	(2-Hydroxy-3-phenoxypropyl)dimethylsulfonium hexafluoroantimonate; Dimethyl(2-hydroxy-3-phenoxypropyl)sulfonium hexafluoroantimonate; Sulfonium, (2-hydroxy-3-phenoxypropyl)dimethyl-, hexafluoroantimonate(1-); UV Photoinitiator 6992; CPI-6992; Aryl Sulfonium Salt Photoinitiator; Cationic Photoinitiator; UV Cure Catalyst for Epoxies
EINECS	Contact for details

Quality Control

Every batch of our sulfonium salt photoinitiator is produced under strict quality management and undergoes comprehensive analytical testing to ensure high purity and consistent performance. We provide a detailed Certificate of Analysis (COA) with each shipment, which includes results for assay, identification, and key impurity profiles. Our quality systems are designed to support applications requiring reliable and reproducible curing kinetics.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed in a low-humidity environment 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 structure
Assay (HPLC)	≥ 98.0 %
Melting Point	Contact for details
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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