2,2,6,6-Tetramethylpiperidine-d18-1-oxyl

• CAT Number: R061593
• CAS Number: 205679-68-1
• PubChem Substance ID: 100970186
• Molecular Formula: C9H18NO
• Molecular Weight: 174.359
• Purity: ≥95%
• Synonyms: 2,2,6,6-Tetramethylpiperidine-d18-1-oxyl
• Target: Metabolic Enzyme/Protease
• IUPAC Name: 3,3,4,4,5,5-hexadeuterio-1-$l^{1}
• InChI: InChI=1S/C9H18NO/c1-8(2)6-5-7-9(3,4)10(8)11/h5-7H2,1-4H3/i1D3,2D3,3D3,4D3,5D2,6D2,7D2
• InChIKey: QYTDEUPAUMOIOP-UWBLXWIRSA-N
• SMILES: [2H]C1(C(C(N(C(C1([2H])[2H])(C([2H])([2H])[2H])C([2H])([2H])[2H])[O])(C([2H])([2H])[2H])C([2H])([2H])[2H])([2H])[2H])[2H]

2,2,6,6-Tetramethylpiperidine-d18-1-oxyl is a fully deuterated analog of the stable free radical commonly known as TEMPO, where all 18 hydrogen atoms are replaced with deuterium. This isotopically labeled compound is widely used in various applications, including as a spin label in electron paramagnetic resonance (EPR) spectroscopy, as well as in oxidation reactions in organic chemistry. The deuterium labeling enhances the stability and accuracy of measurements by reducing proton-related interferences in NMR and EPR analyses. 2,2,6,6-Tetramethylpiperidine-d18-1-oxyl is a valuable tool for researchers requiring precise and reliable data in the study of molecular dynamics, reaction mechanisms, and structural analysis.