Description

4-(Trimethylammonium)-2,2,6,6-Tetramethylpiperidine-D17-1-Oxyl Iodide is a deuterated, spin-labeled quaternary ammonium salt, a specialized derivative of the stable nitroxide radical TEMPO. This compound is critical for advanced research applications requiring isotopic labeling and paramagnetic probes. It is primarily utilized by scientists and R&D departments in the pharmaceutical, biophysical chemistry, and materials science sectors for mechanistic studies, spectroscopy, and as a molecular probe.

Application

• As a paramagnetic probe and spin label in Electron Paramagnetic Resonance (EPR) and Dynamic Nuclear Polarization (DNP) NMR spectroscopy.
• For mechanistic studies in organic and polymer chemistry, investigating reaction pathways and radical processes.
• In membrane biophysics research to study lipid bilayer dynamics, protein interactions, and membrane fluidity.
• As a deuterated standard or tracer in mass spectrometry and analytical method development.
• For the synthesis of advanced functional materials, including polymers and surfaces with controlled radical properties.
• In structural biology to gain insights into protein structure, folding, and conformational changes using spin-labeling techniques.

Basic Information

Product Name	4-(Trimethylammonium)-2,2,6,6-Tetramethylpiperidine-D17-1-Oxyl Iodide
CAS No.	231953-15-4
Molecular Formula	C12D17H15IN2O
Molecular Weight	Contact for details
Synonyms	Perdeuterated TEMPO-Trimethylammonium Iodide; 4-(N,N,N-Trimethylammonio)-2,2,6,6-tetramethylpiperidine-1-oxyl-d17 iodide; Deuterated TEMPO-Choline Iodide; D17-CAT1; (2,2,6,6-Tetramethylpiperidin-1-oxyl-4-yl)trimethylammonium-d17 iodide; 4-Trimethylammonio-TEMPO-d17 iodide; Spin-labeled choline-d17 iodide; TEMPO-Trimethylammonium-d17 iodide
EINECS	Contact for details

Quality Control

Our high-purity specialty chemicals are produced and handled under strict quality management protocols. Each batch of 4-(Trimethylammonium)-2,2,6,6-Tetramethylpiperidine-D17-1-Oxyl Iodide undergoes comprehensive analytical testing, including NMR, HPLC, and EPR spectroscopy, to confirm identity, isotopic enrichment (D17), radical purity, and chemical purity. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C under inert atmosphere for long-term stability. This material is light-sensitive (store away from light). Keep container tightly sealed in a dry and well-ventilated place.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Identification (EPR)	Characteristic nitroxide radical signal
Purity (HPLC)	≥ 95%
Isotopic Enrichment (D17)	≥ 98 atom % D
Radical Content (EPR)	≥ 90%
Residual Solvents (GC)	Complies with ICH guidelines

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