Description

4-Cyano-Tempo is a stable nitroxide radical compound, specifically a cyano-substituted derivative of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO). This compound is valued for its role as a versatile and efficient spin label and catalyst in organic synthesis and polymer chemistry. It is primarily utilized by researchers and industrial chemists in the fields of materials science, polymer stabilization, and as a mediator in controlled oxidation reactions. Its unique structure makes it an essential tool for studying molecular dynamics and for developing advanced synthetic methodologies.

Application

• Spin Labeling in Biophysics and Biochemistry: Used as a paramagnetic probe in Electron Paramagnetic Resonance (EPR) spectroscopy to study protein structure, dynamics, and membrane interactions.
• Polymer Chemistry: Acts as a mediator in Nitroxide-Mediated Polymerization (NMP), enabling the controlled synthesis of polymers with precise molecular weights and architectures.
• Organic Synthesis Catalyst: Serves as a catalyst for the selective oxidation of primary alcohols to aldehydes, offering a mild and efficient alternative to traditional oxidants.
• Antioxidant and Stabilizer: Functions as a radical scavenger to inhibit oxidative degradation in polymers, lubricants, and other sensitive materials, extending their shelf life and performance.
• Materials Science Research: Employed in the development of functional materials, including molecular magnets, conductive polymers, and advanced composites.
• Analytical Chemistry Standard: Used as a standard or reference compound in EPR spectroscopy and other analytical techniques due to its stable radical character.

Basic Information

Product Name	4-Cyano-Tempo
CAS No.	38078-71-6
Molecular Formula	C10H17N2O
Molecular Weight	181.26 g/mol
Synonyms	4-Cyano-2,2,6,6-tetramethylpiperidine-1-oxyl; 4-Cyano-2,2,6,6-tetramethylpiperidin-1-yloxy; 4-Cyano-TEMPO; 4-CN-TEMPO; 1-Oxyl-4-cyano-2,2,6,6-tetramethylpiperidine; 4-Cyano-2,2,6,6-tetramethylpiperidine N-oxyl; 4-Cyano-TEMPO radical; Tempo-4-carbonitrile
EINECS	Contact for details

Quality Control

Our 4-Cyano-Tempo is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and EPR spectroscopy for radical content verification, to ensure it meets the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and assay results is provided with every shipment.

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 minimize oxidation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Assay (EPR)	≥ 97.0% radical content
Melting Point	95 - 105 °C
Loss on Drying	≤ 0.5%

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