Description

2-Chlorothioxanthone is a specialized organic compound belonging to the thioxanthone class, serving as a key intermediate and functional chemical. Its primary value lies in its role as a highly effective photoinitiator and a versatile building block for synthesizing advanced materials. This product is essential for manufacturers in the polymer, coatings, and specialty chemical industries seeking to enhance product performance through photochemical processes.

Application

• Photoinitiator for UV-Curable Systems: A critical component in UV-curable inks, coatings, adhesives, and resins, where it initiates rapid polymerization upon exposure to ultraviolet light.
• Intermediate for Pharmaceutical Synthesis: Used in the research and development of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Polymer Additive: Functions as a light stabilizer or photosensitizer to modify the properties and durability of engineering plastics and specialty polymers.
• Research & Development: Employed in academic and industrial R&D labs for studying photochemical reactions and developing new photoactive materials.
• Specialty Dyes and Pigments: Acts as a precursor in the synthesis of advanced colorants and functional dyes.

Basic Information

Product Name	2-Chlorothioxanthone
CAS No.	86-39-5
Molecular Formula	C₁₃H₇ClOS
Molecular Weight	246.71 g/mol
Synonyms	2-Chloro-9H-thioxanthen-9-one; 2-Chlorothioxanthen-9-one; 2-Chloro-9-thioxanthenone; CTX; 2-CTX; NSC 403697; 9H-Thioxanthen-9-one, 2-chloro-
EINECS	201-670-7

Quality Control

Our 2-Chlorothioxanthone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR for identification, and loss on drying, to ensure it meets exacting standards for industrial and research applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and consistency.

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 incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	215 - 220 °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.