Description

2-Isopropyltioxanthone (CAS NO 54958-41-7) is a high-performance photoinitiator essential for initiating polymerization reactions under UV light. This compound is valued for its efficiency and solubility in various formulations, enabling rapid curing and enhanced production throughput. It is a critical component for manufacturers in the UV-curable coatings, inks, and adhesives industries seeking reliable and fast-curing solutions.

Application

• UV-Curable Coatings: Used as a key photoinitiator for wood, plastic, and metal coatings, providing excellent surface finish and durability.
• Printing Inks: Facilitates rapid curing in flexographic, screen, and offset inks, ensuring high print quality and resistance.
• Industrial Adhesives: Enables fast-setting bonds in UV-curable adhesive systems for electronics, optics, and automotive assembly.
• Electronic Materials: Employed in the photopolymerization of solder masks, conformal coatings, and other protective layers on circuit boards.
• 3D Printing (Stereolithography): Acts as a photoinitiator in resin formulations for additive manufacturing, ensuring precise and rapid layer curing.
• Optical Fiber Coatings: Used in the production of protective primary and secondary coatings for optical fibers.

Basic Information

Product Name	2-Isopropyltioxanthone
CAS No.	54958-41-7
Molecular Formula	C16H14OS
Molecular Weight	254.35 g/mol
Synonyms	2-Isopropylthioxanthone; ITX; 2-Propan-2-ylthioxanthen-9-one; Isopropylthioxanthone; 2-(1-Methylethyl)-9H-thioxanthen-9-one; 2-Isopropyl-9H-thioxanthen-9-one; Photoinitiator ITX; 2-ITX
EINECS	259-420-5

Quality Control

Our 2-Isopropyltioxanthone is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling. A Certificate of Analysis (COA) detailing purity, identity, and physical specifications is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.5%
Melting Point	68 - 72 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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