Description

9-Phenyl-9H-Xanthen-9-Ylradical is a stable, trityl-type radical compound with significant utility in advanced material science and synthetic chemistry. Its unique radical character and robust structure make it an essential intermediate for the development of functional polymers, organic electronic materials, and as a spin-labeling agent. This high-purity specialty chemical is primarily sought by R&D laboratories and manufacturers in the organic electronics, polymer chemistry, and advanced catalyst sectors.

Application

• Polymerization Initiator/Regulator: Acts as a stable radical source for controlled radical polymerization (e.g., Nitroxide-Mediated Polymerization - NMP) to create polymers with precise architectures.
• Organic Electronic Materials: Serves as a key building block or dopant in the synthesis of organic semiconductors, hole-transport materials, and electrochromic devices.
• Spin Labeling & ESR Probes: Utilized in biochemistry and materials science as a stable radical tag for Electron Spin Resonance (ESR) spectroscopy to study molecular dynamics and structure.
• Catalyst & Ligand Synthesis: Employed as a precursor or ligand framework for developing novel organometallic catalysts and photo-redox catalysts.
• Functional Material Additive: Incorporated into coatings, resins, or composites to impart specific electronic or magnetic properties.
• Research & Development: A valuable tool for academic and industrial research in radical chemistry, magnetochemistry, and the development of new organic functional materials.

Basic Information

Product Name	9-Phenyl-9H-Xanthen-9-Ylradical
CAS No.	21482-68-8
Molecular Formula	C25H17O
Molecular Weight	333.40 g/mol
Synonyms	9-Phenylxanthen-9-yl; 9-Phenyl-9H-xanthen-9-yl; 9-Phenylxanthenyl radical; Xanthyl radical; Trityl-type xanthene radical; 9-Phenyl-9-xanthenyl; 9H-Xanthen-9-yl, 9-phenyl-; 9-Phenylxanthyl
EINECS	Contact for details

Quality Control

We supply 9-Phenyl-9H-Xanthen-9-Ylradical in high-purity grades suitable for demanding research and industrial applications. Our quality assurance protocol includes rigorous analytical testing to ensure batch-to-batch consistency and purity. A comprehensive Certificate of Analysis (COA) detailing purity (by HPLC/NMR), identity confirmation, and impurity profiles is provided with every shipment to support your quality and regulatory requirements.

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 compound is light-sensitive and should be handled under an inert atmosphere (e.g., nitrogen or argon) when possible to maintain radical stability and prevent degradation.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97%
Melting Point	Contact for details
Solubility	Soluble in common organic solvents (THF, Toluene, DCM)
Residue on Ignition	< 0.5%

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