Description

Triphenylsulfonium p-Toluenesulfonate is a high-purity, non-nucleophilic photoacid generator (PAG) salt. This compound is critical for initiating cationic polymerization reactions upon exposure to ultraviolet (UV) light or electron beams. It is an essential component for advanced material scientists and engineers in the electronics and specialty polymer industries, enabling the production of high-resolution coatings, photoresists, and other radiation-curable systems.

Application

• Photoresist Formulation: A key photoacid generator (PAG) for chemically amplified photoresists used in semiconductor and microelectronics manufacturing.
• UV-Curable Coatings & Inks: Initiates rapid cationic polymerization for durable, scratch-resistant coatings, inks, and adhesives that cure under UV light.
• Fiber Optics & Optical Waveguides: Used in the production of light-sensitive cladding materials and polymer optical components.
• Lithographic Printing Plates: Serves as a photo-initiator in the production of high-fidelity, negative-working printing plates.
• Advanced Composites: Facilitates the curing of epoxy and other resin systems in composite materials for aerospace and automotive applications.
• 3D Printing (Stereolithography): Acts as a photo-initiator in resin formulations for high-precision additive manufacturing.

Basic Information

Product Name	Triphenylsulfonium p-Toluenesulfonate
CAS No.	13891-29-7
Molecular Formula	C25H22O3S2
Molecular Weight	434.57 g/mol
Synonyms	Triphenylsulfonium Tosylate; Triphenylsulfonium 4-Methylbenzenesulfonate; S-Phenyl-S,S-diphenylsulfonium 4-methylbenzenesulfonate; TPS-Tos; TPS-OTs; Photoacid Generator PAG-TPS; Triphenylsulfonium p-Toluenesulphonate; (Phenylsulfonio)triphenyl-4-methylbenzenesulfonate
EINECS	Contact for details

Quality Control

Our Triphenylsulfonium p-Toluenesulfonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high performance. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry atmosphere to prevent degradation. Keep away from incompatible materials such as strong bases and strong oxidizing 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
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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