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4-Oxo-TEMPO

4-Oxo-TEMPO Structure
4-Oxo-TEMPO structure
CAS No.
2896-70-0
Chemical Name:
4-Oxo-TEMPO
Synonyms
4-OXO-TEMPO;TEMPONE;TANO;Tanone;ZJ-702;vitamin 702;4-Oxo-2,2,6,6;Tanone radical;4-Oxo Tempo (702);TIMTEC-BB SBB008633
CBNumber:
CB5318995
Molecular Formula:
C9H16NO2*
Molecular Weight:
170.23
MDL Number:
MFCD00006187
MOL File:
2896-70-0.mol
MSDS File:
SDS
Last updated:2025-09-17 10:44:43
Request For Quotation

4-Oxo-TEMPO 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
LogP 0.28 at 22℃
CAS DataBase Reference 2896-70-0(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 7W1863PEH5
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)
UNSPSC Code 12352000
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS09
Signal word  Warning
Hazard statements  H400
Precautionary statements  P273
Risk Statements  36/37/38
Safety Statements  24/25
RIDADR  UN 3077 9 / PGIII
WGK Germany  3
RTECS  TN9200000
TSCA  Yes
HS Code  29333990
NFPA 704
1
1 0

4-Oxo-TEMPO price More Price(28)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 179485 4-Oxo-TEMPO 2896-70-0 1g $68 2025-07-31 Buy
Sigma-Aldrich 179485 4-Oxo-TEMPO 2896-70-0 5g $208 2025-07-31 Buy
TCI Chemical O0266 4-Oxo-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical >95.0%(GC)(T) 2896-70-0 5g $101 2025-07-31 Buy
TCI Chemical O0266 4-Oxo-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical >95.0%(GC)(T) 2896-70-0 25g $331 2025-07-31 Buy
Cayman Chemical 14877 TEMPONE ≥98% 2896-70-0 1g $32 2024-03-01 Buy
Product number Packaging Price Buy
179485 1g $68 Buy
179485 5g $208 Buy
O0266 5g $101 Buy
O0266 25g $331 Buy
14877 1g $32 Buy

4-Oxo-TEMPO Chemical Properties,Uses,Production

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

Uses

A spin label for ESR studies

Uses

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

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

References

[1] ADAM WU. Nitroxyl Radical Plus Hydroxylamine Pseudo Self-Exchange Reactions: Tunneling in Hydrogen Atom Transfer[J]. Journal of the American Chemical Society, 2009, 131 33: 11985-11997. DOI: 10.1021/ja904400d
[2] LUMATA L, MERRITT M, KHEMTONG C, et al. The efficiency of DPPH as a polarising agent for DNP-NMR spectroscopy?[J]. RSC Advances, 2012, 33: 12812-12817. DOI: 10.1039/c2ra21853d
[3] KINJAL PATEL. Acute antihypertensive action of nitroxides in the spontaneously hypertensive rat.[J]. American journal of physiology. Regulatory, integrative and comparative physiology, 2006, 290 1: R37-43. DOI: 10.1152/ajpregu.00469.2005

4-Oxo-TEMPO synthesis

826-36-8
2896-70-0
Synthesis of 4-Oxo-TEMPO from Triacetonamine

4-Oxo-TEMPO Preparation Products And Raw materials

Raw materials

Preparation Products

2,2,6,6-TETRAMETHYLPIPERIDINE-1-OXYL-4-AMINO-4-CARBOXYLIC ACID RAC-2,2,6,6-TETRAMETHYLPIPERIDINE-N-OXYL-4, 4-(5-SPIROHYDANTOIN)

4-Oxo-TEMPO Suppliers

Global( 264)Suppliers
Supplier Tel Email Country ProdList Advantage
Jiangxi Lotchem Co.,Ltd.
+8615270827708 lancetu@jxlotchem.com CHINA 338 58
Hebei Chuanghai Biotechnology Co., Ltd 		+8617732866630 abby@chuanghaibio.com China 8773 58
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD 		+86-13017695106 +86-13676922317 jiuyitime@fdachem.com China 9028 58
Capot Chemical Co.,Ltd. 		+8613336195806 sales@capot.com China 29734 60
Shanghai Daken Advanced Materials Co.,Ltd 		+86-2158073036 info@dakenam.com China 12930 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21622 55
Hangzhou FandaChem Co.,Ltd. 		008657128800458; +8615858145714 FandaChem@Gmail.com China 1631 55
Hefei TNJ Chemical Industry Co.,Ltd. 		+86-0551-65418679 +8618949832763 info@tnjchem.com China 2988 55
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29855 58
Jinan Finer Chemical Co., Ltd 		+86-531-88989536 +86-15508631887 sales@finerchem.com China 2953 58
Supplier Advantage
Jiangxi Lotchem Co.,Ltd.
58
Hebei Chuanghai Biotechnology Co., Ltd 		58
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD 		58
Capot Chemical Co.,Ltd. 		60
Shanghai Daken Advanced Materials Co.,Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55
Hangzhou FandaChem Co.,Ltd. 		55
Hefei TNJ Chemical Industry Co.,Ltd. 		55
career henan chemical co 		58
Jinan Finer Chemical Co., Ltd 		58

View Lastest Price from 4-Oxo-TEMPO manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINOOXY pictures 2025-09-17 4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINOOXY
2896-70-0
 US $0.00 / g 1g 98% 20tons Hubei Lidu New Material Technology Co., Ltd
4-Oxo-2,2,6,6-tetramethylpiperidinooxy pictures 2025-09-17 4-Oxo-2,2,6,6-tetramethylpiperidinooxy
2896-70-0
 US $0.00 / KG 1KG 99% 500mt Jinan Finer Chemical Co., Ltd
Tempone pictures 2025-09-17 Tempone
2896-70-0
 US $0.00 / removed 98.18% 10g TargetMol Chemicals Inc.
  • Tempone pictures
  • Tempone
    2896-70-0
  • US $0.00 / removed
  • 98.18%
  • TargetMol Chemicals Inc.

4-Oxo-TEMPO Spectrum

4-Oxo-2,2,6,6-tetramethylpiperidinooxy(2896-70-0)IR14-Oxo-2,2,6,6-tetramethylpiperidinooxy(2896-70-0)Raman4-Oxo-2,2,6,6-tetramethylpiperidinooxy(2896-70-0)ESR

2896-70-0(4-Oxo-TEMPO)Related Search:

Triacetonediamine 2,2,6,6-Tetramethylpiperidine 1,1'-Carbonyldiimidazole 2,2,6,6-Tetramethyl-4-piperidinol PENICILLIN V
TEMPO 4-Methylenepiperidine HCl 1-Hydroxy-2,2,6,6-tetramethyl-4-oxopiperidine Carbonyl iron powder 3,5-Dibromo-4-oxo-2,2,6,6-tetramethylpiperidin-1-yl
4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINE-D16-1-OXYL 4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINE-D16,1-15N-1-OXYL 4-Oxo-2,2,6,6-tetramethylpiperidinooxy 1-Acetyloxy-2,2,6,6-tetramethyl-4-oxopiperidine 4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINE-1-15N-1-OXYL
1-HYDROXY-2 2 6 6-TETRAMETHYL-4-PIPERI- 1-Benzoyloxy-2,2,6,6-tetramethyl-4-oxopiperidine

1of4

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 2,2,6,6-TETRAMETHYL-4-PIPERIDONE 1-OXYL 4-OXO-TEMPO 4-OXO-TEMPO, FREE RADICAL 4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINOOXY 4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINOOXY, FREE RADICAL 4-OXO-2,2,6,6-TETRAMETHYL-1-PIPERIDINYLOXY 4-OXO-2,2,6,6-TETRAMETHYL-4-PIPERIDINYLOXY 4-OXO-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL 2,2,6,6-TETRAMETHYLPIPERID-4-ONE-1-OXYL 4-Oxo-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical 4-OXO-TEMPO ---ORANGE SOLID, SPIN LABEL, PURITY 99%--- 4-Oxo-2,2,6,6-tetramethylpiperidinooxy, 95%, free radical (2,2,6,6-Tetramethyl-4-oxopiperidinooxy)radical (2,2,6,6-Tetramethyl-4-oxopiperidinyloxy)radical [(4-Oxo-2,2,6,6-tetramethylpiperidine-1-yl)oxy]radical 1-Piperidinyloxy radical, 2,2,6,6-tetramethyl-4-oxo- 2,2,6,6-tetramethyl-4-oxo-1-piperidinylox 2,2,6,6-tetramethyl-4-oxo-piperidin-1-oxyl 2,2,6,6-tetramethyl-4-oxo-piperidinoox 2,2,6,6-Tetramethyl-4-oxo-piperidinoxy 2,2,6,6-Tetramethyl-4-piperidone 1-nitroxide 2,2,6,6-Tetramethylpiperidone-1-oxyl 4-Oxo-2,2,6,6-tetramethylpiperidinooxyl Piperidinooxy, 2,2,6,6-tetramethyl-4-oxo- TANO Tanone Tanone radical 4-oxo-2,2,6,6-tetramethyl piperidone -1-oxyl 4-Oxo Tempo (702) 4-Oxo-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical(purified by sublimation) 4-Oxo TeMpo, free radical (4-Oxo-2,2,6,6-TetraMethyl-4-Piperidinyloxy, free radical) ZJ-702 4-Oxo-2,2,6,6-tetraMethylpiperidinoxy (4-oxo-TeMpo) 4-Oxo-2,2,6,6-trtramethyl-1-piperidinyloxy 4-Oxo-2,2,6,6-tetramethylpiperidine 1-Oxyl  Triacetoneamine nitroxide Triacetoneamine N-oxyl triacetoneamine-n-oxyl TEMPONE TIMTEC-BB SBB008633 1-OXYL-2,2,6,6-TETRAMETHYL-4-PIPERIDONE 2,2,6,6-TETRAMETHYL-4-OXO-1-PIPERIDINYLOXY 2,2,6,6-TETRAMETHYL-4-OXOPIPERIDINOOXY 4-Oxo-2,2,6,6-tetramethylpiperidine1-OxylFreeRadical> 4-Oxo-tempo[4-Oxo-TEMPO] 4-Oxo-TEMPO, free radical, 96%, 1-(1H-1,3-BENZODIAZOL-2-YL)-1H-PYRAZOL-9-AMINE Oxo-2,2,6,6-tetramethylpiperidinooxy vitamin 702 Polycondensation inhibitor 702 / 4-Oxo-TEMPO