Description

tert-Butyl p-Cyanophenyl Nitroxide Radical is a stable nitroxide radical compound, a member of the versatile TEMPO (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl family, characterized by its para-cyanophenyl substituent. This compound is a crucial building block and spin probe in advanced materials science and polymer chemistry, valued for its persistent radical nature. It is primarily utilized by researchers and industrial chemists in the development of controlled polymerization systems, as a mediator in organic synthesis, and in the creation of functional materials for electronics and sensors.

Application

• Nitroxide-Mediated Polymerization (NMP): Acts as a stable, persistent radical mediator/controller for the synthesis of polymers with controlled molecular weight and narrow polydispersity.
• Organic Synthesis & Catalysis: Serves as a catalyst or co-catalyst in selective oxidation reactions and as a radical trap or spin label in mechanistic studies.
• Electron Paramagnetic Resonance (EPR) Spectroscopy: Used as a spin probe or spin label to study molecular dynamics, polymer chain mobility, and material microstructure.
• Functional Materials: Incorporated into polymers, gels, or surfaces to impart redox-active, magnetic, or sensing properties for advanced material applications.
• Antioxidant Research: Employed as a model compound to study radical scavenging activity and oxidative degradation processes.
• Bioconjugation & Labeling: Utilized to attach spin labels to biomolecules (proteins, nucleic acids) for structural and dynamic analysis via EPR.

Basic Information

Product Name	tert-Butyl p-Cyanophenyl Nitroxide Radical
CAS No.	3229-64-9
Molecular Formula	C11H12N2O
Molecular Weight	188.23 g/mol
Synonyms	4-(tert-Butylnitroso)benzonitrile; 4-Cyano-2,2,6,6-tetramethylpiperidin-1-oxyl (para-cyano-TEMPO); 4-Cyano-TEMPO; p-Cyano-TEMPO; 1-Oxyl-2,2,6,6-tetramethyl-4-cyanopiperidine; 4-CN-TEMPO; TEMPO-4-CN; (2,2,6,6-Tetramethyl-4-cyanopiperidin-1-yl)oxidanyl
EINECS	Contact for details

Quality Control

Our tert-Butyl p-Cyanophenyl Nitroxide Radical is produced under strict quality protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and EPR for radical content verification, to ensure consistency and performance. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your research and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation and degradation. Keep away from incompatible materials such as strong reducing agents.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Radical Content (EPR)	≥ 97.0%
Melting Point	Contact for details
Residue on Ignition	≤ 0.5%

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