Description

4-Trimethylammonium-2,2,6,6-Tetramethylpiperidine-1-Oxyl Iodide is a stable nitroxide radical salt, widely recognized as a key precursor for the synthesis of TEMPO (2,2,6,6-Tetramethylpiperidine-1-oxyl) derivatives. This compound is valued for its role as a versatile and efficient catalyst and mediator in controlled oxidation reactions and polymer chemistry. It is essential for R&D and production in industries focused on advanced materials, pharmaceuticals, and specialty chemical synthesis.

Application

• Polymer Chemistry: As a mediator for Nitroxide-Mediated Radical Polymerization (NMP), enabling precise control over polymer molecular weight and architecture.
• Organic Synthesis: As a catalyst for the selective oxidation of primary alcohols to aldehydes, a critical step in fine chemical and pharmaceutical manufacturing.
• Biochemistry & Spin Labeling: Used to synthesize spin-labeled molecules for Electron Paramagnetic Resonance (EPR) spectroscopy studies of biomolecular structure and dynamics.
• Material Science: Employed in the surface functionalization of nanoparticles and the development of conductive or magnetic organic materials.
• Analytical Chemistry: Serves as a stable radical standard for calibration in various spectroscopic and chromatographic techniques.
• Antioxidant Research: Investigated as a model compound for studying radical scavenging mechanisms and developing novel antioxidants.

Basic Information

Product Name	4-Trimethylammonium-2,2,6,6-Tetramethylpiperidine-1-Oxyl Iodide
CAS No.	64525-01-5
Molecular Formula	C12H26IN2O
Molecular Weight	341.25 g/mol
Synonyms	4-(Trimethylammonio)-2,2,6,6-tetramethylpiperidine-1-oxyl iodide; 4-(N,N,N-Trimethylammonium)-2,2,6,6-tetramethylpiperidine-1-oxyl iodide; TEMPO Ammonium Iodide; 4-Amino-TEMPO Iodide Salt; 1-Oxyl-2,2,6,6-tetramethyl-4-(trimethylammonio)piperidinium iodide; 4-(Trimethylamino)-TEMPO iodide; 4-Trimethylammonio-TEMPO iodide; 4-TMA-TEMPO Iodide
EINECS	Contact for details

Quality Control

Our 4-Trimethylammonium-2,2,6,6-Tetramethylpiperidine-1-Oxyl Iodide is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and EPR spectroscopy, to ensure high purity and consistent radical content. Certificates of Analysis (COA) detailing identity, purity, and assay are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability and performance.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Radical Content (EPR)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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