4-Oxo-TEMPO
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- $8 - $3234
- Product name: 4-Oxo-TEMPO
- CAS: 2896-70-0
- MF: C9H16NO2*
- MW: 170.23
- EINECS:220-778-7
- MDL Number:MFCD00006187
- Synonyms:4-Oxo-2,2,6,6-tetramethyl-1-piperidinyloxy, free radical;4-OXO-TEMPO, FREE RADICAL 80+%;4-OXO-TEMPO, FREE RADICAL 99+%;4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINOXY;4-Oxo-2,2,6,6-tetramethylpiperidine-1-oxyl(4-Oxo-TEMPO,freeradical);4-Oxo-2,2,6,6;4-Oxo-2,2,6,6-trtramethyl-1-piperidi nyloxy,free radical;2,2,6,6-Tetramethyl-4-piperidone 1-oxyl, free radical
97 prices
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Brand
- aablocks
- AHH
- AK Scientific
- American Custom Chemicals Corporation
- Apolloscientific
- Arctom
- Cayman Chemical
- Chemcia Scientific
- Chemenu
- Chem-Impex
- ChemScene
- Frontier Specialty Chemicals
- Matrix Scientific
- Sigma-Aldrich
- TCI Chemical
- Thermo Scientific Chemicals
- TRC
Package
- 10mM*1mLinDMSO(Solution)
- 1g
- 5g
- 10g
- 10mM*1mLinDMSO(Solid+Solvent)
- 25g
- 50G
- 100g
- 250G
- 500g
- 1kg
- Manufactureraablocks
- Product numberAA003LVE
- Product description4-Oxo-2,2,6,6-tetramethylpiperidinooxy 98%
- Packaging1g
- Price$8
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA003LVE
- Product description4-Oxo-2,2,6,6-tetramethylpiperidinooxy 97%
- Packaging5g
- Price$12
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA003LVE
- Product description4-Oxo-2,2,6,6-tetramethylpiperidinooxy ≥95%(GC)
- Packaging25g
- Price$38
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA003LVE
- Product description4-Oxo-2,2,6,6-tetramethylpiperidinooxy ≥95%(GC)
- Packaging100g
- Price$113
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA003LVE
- Product description4-Oxo-2,2,6,6-tetramethylpiperidinooxy 95%
- Packaging500g
- Price$540
- Updated2026-05-28
- Buy
- ManufacturerAHH
- Product numberMT-20580
- Product description4-Oxo-2,2,6,6-tetramethylpiperidinooxy 95%
- Packaging100g
- Price$598
- Updated2021-12-16
- Buy
- ManufacturerAHH
- Product numberMT-20576
- Product description4-oxo-Tempo 97%
- Packaging100g
- Price$598
- Updated2026-05-25
- Buy
- ManufacturerAHH
- Product numberMT-20576
- Product description4-oxo-Tempo 97%
- Packaging100g
- Price$598
- Updated2026-05-26
- Buy
- ManufacturerAK Scientific
- Product numberE628
- Product description4-Oxo-TEMPO, free radical 97%(GC)
- Packaging100g
- Price$454
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ61597
- Product description4-Oxo-TEMPO, free radical 97%(GC)
- Packaging25g
- Price$108
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberE628
- Product description4-Oxo-TEMPO,freeradical
- Packaging5g
- Price$81
- Updated2021-12-16
- Buy
- ManufacturerAK Scientific
- Product numberE628
- Product description4-Oxo-TEMPO, free radical 97%(GC)
- Packaging25g
- Price$152
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ61597
- Product description4-Oxo-TEMPO, free radical 97%(GC)
- Packaging100g
- Price$324
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberE628
- Product description4-Oxo-TEMPO, free radical 97%(GC)
- Packaging5g
- Price$33
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberE628
- Product description4-Oxo-TEMPO, free radical 97%(GC)
- Packaging1g
- Price$16
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ61597
- Product description4-Oxo-TEMPO, free radical 97%(GC)
- Packaging5g
- Price$23
- Updated2026-06-04
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| aablocks | AA003LVE | 4-Oxo-2,2,6,6-tetramethylpiperidinooxy 98% | 1g | $8 | 2026-05-28 | Buy |
| aablocks | AA003LVE | 4-Oxo-2,2,6,6-tetramethylpiperidinooxy 97% | 5g | $12 | 2026-05-28 | Buy |
| aablocks | AA003LVE | 4-Oxo-2,2,6,6-tetramethylpiperidinooxy ≥95%(GC) | 25g | $38 | 2026-05-28 | Buy |
| aablocks | AA003LVE | 4-Oxo-2,2,6,6-tetramethylpiperidinooxy ≥95%(GC) | 100g | $113 | 2026-05-28 | Buy |
| aablocks | AA003LVE | 4-Oxo-2,2,6,6-tetramethylpiperidinooxy 95% | 500g | $540 | 2026-05-28 | Buy |
| AHH | MT-20580 | 4-Oxo-2,2,6,6-tetramethylpiperidinooxy 95% | 100g | $598 | 2021-12-16 | Buy |
| AHH | MT-20576 | 4-oxo-Tempo 97% | 100g | $598 | 2026-05-25 | Buy |
| AHH | MT-20576 | 4-oxo-Tempo 97% | 100g | $598 | 2026-05-26 | Buy |
| AK Scientific | E628 | 4-Oxo-TEMPO, free radical 97%(GC) | 100g | $454 | 2026-06-04 | Buy |
| AK Scientific | J61597 | 4-Oxo-TEMPO, free radical 97%(GC) | 25g | $108 | 2026-06-04 | Buy |
| AK Scientific | E628 | 4-Oxo-TEMPO,freeradical | 5g | $81 | 2021-12-16 | Buy |
| AK Scientific | E628 | 4-Oxo-TEMPO, free radical 97%(GC) | 25g | $152 | 2026-06-04 | Buy |
| AK Scientific | J61597 | 4-Oxo-TEMPO, free radical 97%(GC) | 100g | $324 | 2026-06-04 | Buy |
| AK Scientific | E628 | 4-Oxo-TEMPO, free radical 97%(GC) | 5g | $33 | 2026-06-04 | Buy |
| AK Scientific | E628 | 4-Oxo-TEMPO, free radical 97%(GC) | 1g | $16 | 2026-06-04 | Buy |
| AK Scientific | J61597 | 4-Oxo-TEMPO, free radical 97%(GC) | 5g | $23 | 2026-06-04 | Buy |
Properties
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
InChI :1S/C9H16NO2/c1-8(2)5-7(11)6-9(3,4)10(8)12/h5-6H2,1-4H3
InChIKey :WSGDRFHJFJRSFY-UHFFFAOYSA-N
SMILES :CC1(C)CC(=O)CC(C)(C)N1[O]
LogP :0.28 at 22℃
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)
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
InChI :1S/C9H16NO2/c1-8(2)5-7(11)6-9(3,4)10(8)12/h5-6H2,1-4H3
InChIKey :WSGDRFHJFJRSFY-UHFFFAOYSA-N
SMILES :CC1(C)CC(=O)CC(C)(C)N1[O]
LogP :0.28 at 22℃
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
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| Signal word: | Warning | ||||||||||||||
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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.Related product price
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Suppliers and manufacturers
Jiangxi Lotchem Co.,Ltd.
Capot Chemical Co.,Ltd.
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Hefei TNJ Chemical Industry Co.,Ltd.
Shandong chuangyingchemical Co., Ltd.




