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382000 Sigma-Aldrich

4-Carboxy-TEMPO, free radical

97%

Synonym: 4-Carboxy-2,2,6,6-tetramethylpiperidine 1-oxyl, 4-Carboxy-2,2,6,6-tetramethylpiperidinyloxy, free radical, 4-Carboxy-TEMPO

  • CAS Number 37149-18-1

  • Empirical Formula (Hill Notation) C10H18NO3

  • Molecular Weight 200.25

  •  Beilstein/REAXYS Number 3949026

  •  MDL number MFCD00134569

  •  PubChem Substance ID 24863856

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Chemical Synthesis, Electron Spin Resonance (ESR/EPR) Spectroscopy, Radical Chemistry,
InChI Key   CYQGCJQJIOARKD-UHFFFAOYSA-N
assay   97%
mp   185-189 °C (lit.)
storage temp.   2-8°C

Description

General description

4-Carboxy-TEMPO is a 4-substituted 2,2,6,6-tetramethylpiperidyl-1-oxy (TEMPO) derivative. 4-carboxy-TEMPO immobilized with 3-aminopropylsilane on the mesoporous silica surface comprises heterogeneous catalytic system employed for various oxidation reactions.

Application

4-Carboxy-TEMPO may be employed as catalyst for the oxidation of regenerated cellulose (viscose rayon) to cellouronic acid.

Packaging

250 mg in glass bottle

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

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Protocols & Articles

Articles

TEMPO Catalyzed Oxidations

TEMPO (2,2,6,6-Tetramethylpiperidinyloxy or 2,2,6,6-Tetramethylpiperidine 1-oxyl) and its derivatives are stable nitroxy radicals used as catalysts in organic oxidation reactions. TEMPO was discovere...
Keywords: Aerobic, Capillary electrophoresis, Catalysis, Chromatography, Coupling reactions, Oxidations, Polymerization reactions, Size-exclusion chromatography, Solvents

Peer-Reviewed Papers
15

References

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