Description

Sulfonium 047W CAS NO 124120-28-1 is a high-purity sulfonium salt, a versatile class of organosulfur compounds valued for their role as photoacid generators and cationic initiators. This compound is critical for enabling advanced photolithography and precision polymerization processes in high-tech manufacturing. It is primarily sought by producers of semiconductors, advanced photoresists, and specialty polymers who require consistent reactivity and exceptional purity for their formulations.

Application

• Photoresist Formulation: Serves as a key photoacid generator (PAG) in chemically amplified resists for deep-UV (DUV) and extreme-UV (EUV) lithography in semiconductor fabrication.
• Cationic Polymerization: Acts as an efficient thermal or photo-induced initiator for the polymerization of epoxides, vinyl ethers, and other monomers.
• Advanced Coatings & Inks: Used in UV-curable coatings, inks, and adhesives to initiate rapid, controlled curing.
• Chemical Synthesis: Employed as a versatile sulfonium-based reagent or catalyst in organic synthesis for alkylation and other key transformations.
• Electronic Materials: A component in the development of dielectric materials and other functional polymers for the electronics industry.
• Research & Development: Utilized in academic and industrial R&D for exploring new photochemical and polymerization pathways.

Basic Information

Product Name	Sulfonium 047W
CAS No.	124120-28-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Triphenylsulfonium Salt (specific anion may vary); Photoacid Generator 047W; Sulfonium PAG; PAG 047W; Sulfonium Photoinitiator; Triarylsulfonium Salt; Lithography Photoacid; Cationic Photoinitiator
EINECS	Contact for details

Quality Control

Every batch of Sulfonium 047W is manufactured and tested under a strict quality management system to ensure it meets the exacting standards required for electronic and photochemical applications. Our products undergo rigorous quality testing, including chromatographic purity analysis and performance testing, to ensure compliance with industry specifications. Certificates of Analysis (COA) documenting purity, identity, and key physical properties are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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