Description

2,2,6,6-Tetramethyl-4-(2-Propynyloxy)Piperidine 1-Oxyl Free Radical is a stable nitroxide radical compound, also known as a propargyl ether-substituted TEMPO derivative. This compound serves as a highly effective and versatile intermediate and catalyst in controlled radical polymerization and organic synthesis. It is primarily utilized by researchers and manufacturers in the polymer, specialty chemical, and pharmaceutical industries for developing advanced materials and fine chemicals.

Application

• Controlled/Living Radical Polymerization (ATRP, NMP, RAFT): Acts as a stable nitroxide mediator or initiator for synthesizing polymers with precise molecular weight and low polydispersity.
• Organic Synthesis & Catalysis: Employed as a catalyst for the selective oxidation of alcohols to aldehydes and ketones under mild conditions.
• Polymer Modification & Functionalization: Used to introduce alkyne (propynyl) functional groups into polymer chains for subsequent "click chemistry" reactions like CuAAC.
• Spin Labeling in Biophysics & Biochemistry: Serves as a paramagnetic probe (spin label) in Electron Paramagnetic Resonance (EPR) spectroscopy for studying macromolecular structure and dynamics.
• Antioxidant & Stabilizer Precursor: Functions as a building block for creating hindered amine light stabilizers (HALS) and antioxidants for plastics and coatings.
• Material Science Research: Key intermediate in the development of organic magnetic materials, conductive polymers, and other advanced functional materials.

Basic Information

Product Name	2,2,6,6-Tetramethyl-4-(2-Propynyloxy)Piperidine 1-Oxyl Free Radical
CAS No.	147045-24-7
Molecular Formula	C12H20NO2
Molecular Weight	210.30 g/mol
Synonyms	4-(Prop-2-yn-1-yloxy)-2,2,6,6-tetramethylpiperidin-1-oxyl; TEMPO Propargyl Ether; Propargyloxy-TEMPO; 2,2,6,6-Tetramethyl-4-(prop-2-ynyloxy)piperidin-1-oxyl; 4-(2-Propynyloxy)-2,2,6,6-tetramethylpiperidine-1-oxyl; Stable Nitroxyl Radical with Propargyl Ether Group; Alkyne-functionalized TEMPO radical
EINECS	Contact for details

Quality Control

Our 2,2,6,6-Tetramethyl-4-(2-Propynyloxy)Piperidine 1-Oxyl Free Radical is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and EPR for radical content verification, to ensure it meets the high standards required for research and industrial applications. Certificates of Analysis (COA) detailing specific batch results are available upon request.

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 (store away from light). Keep away from strong reducing agents and incompatible materials.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Radical Content (EPR)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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