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HomeProduct name list4-Oxo-TEMPO

4-Oxo-TEMPO

Synonym(s):4-Oxo-2,2,6,6-tetramethyl-1-piperidinyloxy, free radical

  • CAS NO.:2896-70-0
  • Empirical Formula: C9H16NO2*
  • Molecular Weight: 170.23
  • MDL number: MFCD00006187
  • EINECS: 220-778-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-20 11:41:24
4-Oxo-TEMPO Structural

What is 4-Oxo-TEMPO?

Description

2,2,6,6-Tetramethylpiperidin-1-oxyl (TEMPO) is a stable radical that will react with reactive oxygen species (ROS). This conversion, followed by ESR, provides an indirect way to monitor ROS production in biological systems. TEMPONE is the 4-oxo derivative of TEMPO. In addition to possible uses as a spin trap, this nitroxyl radical can be used in hydrogen transfer experiments and as a polarizing agent in dynamic nuclear polarization NMR spectroscopy. TEMPONE and other nitroxyl radicals have also been shown to reduce mean arterial pressure in spontaneously hypertensive rats when administered intravenously.

Chemical properties

Pink Needles

The Uses of 4-Oxo-TEMPO

A spin label for ESR studies

The Uses of 4-Oxo-TEMPO

Free-radical nitroxide spin probe typically used for:

  • Redox sources for anodes in lithium secondary batteries
  • Free-radical biological studies
  • Radical spin-trapping
  • Electron paramagnetic resonance studies
  • Polymer chemisty and synthesis applications

What are the applications of Application

TEMPONE is a useful spin trap for in vitro experiments

General Description

4-Oxo-TEMPO is formed by the reaction of 2,2,6,6-tetramethyl-4-piperidone (4-oxo-TMP) and 1O2. It is a stable paramagnetic product formed during the irradiation of TiO2 in aqueous suspensions.

Flammability and Explosibility

Non flammable

Properties of 4-Oxo-TEMPO

Melting point: 33-38 °C
Boiling point: 299.88°C (rough estimate)
Density  1.0710 (rough estimate)
vapor pressure  2.254Pa at 25℃
refractive index  1.4640 (estimate)
storage temp.  2-8°C
solubility  DMF: 30 mg/ml; DMSO: 30 mg/ml; Ethanol: 30 mg/ml; PBS (pH 7.2): 10 mg/ml
form  Needles, Crystals or Crystalline Powder
color  Orange
Water Solubility  Soluble in water (partly), acetone, DMSO, 100% ethanol, and diethylether. Insoluble in water.
BRN  1818579
CAS DataBase Reference 2896-70-0(CAS DataBase Reference)
NIST Chemistry Reference 1-Piperidinyloxy, 2,2,6,6-tetramethyl-4-oxo-(2896-70-0)
EPA Substance Registry System 1-Piperidinyloxy, 2,2,6,6-tetramethyl-4-oxo- (2896-70-0)

Safety information for 4-Oxo-TEMPO

Signal word Warning
Pictogram(s)
ghs
Environment
GHS09
GHS Hazard Statements H400:Hazardous to the aquatic environment, acute hazard
Precautionary Statement Codes P273:Avoid release to the environment.

Computed Descriptors for 4-Oxo-TEMPO

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