Description

Oxynitrox(R) S100 is a high-purity, stable free radical compound with an average molecular weight of approximately 2250. This product is essential for applications requiring a reliable and consistent source of nitroxide radicals, offering superior stability and performance compared to lower molecular weight analogs. It is primarily utilized by researchers and manufacturers in the polymer, materials science, and specialty chemical industries for controlled radical polymerization, as a spin label in spectroscopy, and as an antioxidant or stabilizer in advanced formulations.

Application

• Controlled Radical Polymerization (CRP): Acts as a stable mediating agent in Nitroxide-Mediated Polymerization (NMP) for synthesizing polymers with controlled architecture and narrow molecular weight distribution.
• Polymer Stabilization: Serves as an effective antioxidant and radical scavenger to inhibit thermal and oxidative degradation in plastics, elastomers, and coatings, extending product lifespan.
• Spin Labeling & Probing: Used in Electron Paramagnetic Resonance (EPR) spectroscopy as a spin label to study molecular dynamics, structure, and interactions in biological systems and soft materials.
• Advanced Material Synthesis: A key intermediate in the development of functional materials, including block copolymers, graft polymers, and surface-modified nanoparticles.
• Biomedical Research: Employed in studies of oxidative stress and as a contrast agent in magnetic resonance imaging (MRI) research due to its paramagnetic properties.
• Lubricant & Fuel Additives: Functions as a stabilizer to prevent gum formation and viscosity increase in industrial lubricants and fuels.

Basic Information

Product Name	Oxynitrox(R) S100, Free Radical, 99+% (Avge Mw Ca 2250)
CAS No.	91993-31-6
Molecular Formula	Contact for details
Molecular Weight	~2250 g/mol (Average)
Synonyms	Poly(TEMPO methacrylate); TEMPO-based macro-RAFT agent; Stable nitroxide radical polymer; Poly(2,2,6,6-tetramethylpiperidin-1-oxyl-4-yl methacrylate); PTMA; Nitroxide-mediated polymerization agent; Poly(TEMPO-MA); Oxynitrox S100
EINECS	Contact for details

Quality Control

Every batch of Oxynitrox(R) S100 is manufactured under strict quality management protocols. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, molecular weight distribution, and radical content are available upon request to support your quality assurance and regulatory needs.

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. For long-term storage, consider maintaining under an inert atmosphere to preserve radical activity.

Specification

Item	Specification
Appearance	Yellow to orange powder or solid
Identification (IR)	Conforms to structure
Assay (Free Radical Content)	≥ 99%
Average Molecular Weight (Mw)	~2250 g/mol
Polydispersity Index (PDI)	≤ 1.3
Residual Solvents	Meets ICH guidelines
Heavy Metals	< 10 ppm

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