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CAS No 2226-96-2 , 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy Search by region : Germany

  • Name: 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy
  • Synonyms: 4-Hydroxy-TEMPO free radical; 4-hydroxyl-2,2,6,6-tetramethylpiperidine-1-Oxyl; 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl;2,2,6,6-Tetramethyl freeagaoxy-4-piperidyl;4-Hydroxy Tempo, Free Radical; 4-hydroxyl TEMPO; 2,2,6,6-Tetramethyl-4-hydroxypiperidine 1-oxyl; 4-Hydroxy-2,2,6,6-tetramethyl-1-piperidin-1-yloxy, free radical; polymerization inhibitor701; 4-Hydroxy-TEMPO Styrene,Acrylates+Acrylics polymerisation inhibitor; tempol; 4-Hydroxy-TEMPO; 4-Hydroxy Tempo; High-efficiency Inhibitor ZJ-701; 2,2,6,6-Tetramethyl freeagaoxy-4-piperidyl; TMHPO; free radical of nitroxide; Dipyridamole oxide;4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy; 4-Hydroxyl-2,2,6,6-tetramethyl-piperidin-1-oxyl free radical; 4-Hydroxy-2,2,6,6,-tetramethyl-4-piperidinyl oxide,free radical; Light stabilizer 701; 2.2.6.6-tetramethyl-freeagaoxy-4-piperidyl; inhibitor zx-172; 4-Hydroxy-2,2,6,6-tetramethyl-piperidinyloxy; 2,2,6,6,-Tetramethyl-Freeagaoxy-4-Piperidyl;
  • CAS Registry Number:
  • Melting Point: 69-73 ºC
  • Flash Point: 146
  • Boiling Point: 269
  • Density: 1.187 g/cm3
  • Safety Statements: R22;R36/38
  • Hazard Symbols: Xn: Harmful;
  • HS Code: 29333999
  • Flash Point: 146
  • EINECS: 218-760-9
  • Molecular Weight: 172.25
  • InChI: InChI=1/C9H18NO2/c1-8(2)5-7(11)6-9(3,4)10(8)12/h7,11H,5-6H2,1-4H3
  • Risk Statements: S26;S37/39
  • Molecular Formula: C9H18NO2
  • Molecular Structure:CAS No:2226-96-2 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy

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2226-96-2 4-HYDROXY-TEMPO, FREE RADICAL; 98%

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany null,nullGermany
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2226-96-2 4-HYDROXY-2,2,6,6-TETRAMETHYLPIPERIDINE-N-OXYL (HYDROXY-TEMPO)

  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany null,nullGermany
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2226-96-2 4-HYDROXY- 2,2,6,6-TETRAMETHYLPIPERIDINE-N-OXYL PIPERIDINOOXY, 4-HYDROXY-2,2,6,6-TETRAMETHYL-; 1-OXYL-2,2,6,6-TETRAMETHYL-4-PIPERIDINOL; 2,2,6,6-TETRAMETHYL-4-HYDROXY-1-PIPERIDINYLOXY RADICAL; 2,2,6,6-TETRAMETHYL-4-HYDROXYPIPERIDIN-1-OXYL; 2,2,6,6-TETRAMETHYL-4-HYDROXYPIPERIDINE 1-OXIDE RADICAL; 2,2,6,6-TETRAMETHYL-4-HYDROXYPIPERIDINE

  • Germany Evonik Degussa GmbH [Manufacturer]
  • Tel: 877-202-3463
  • Fax: 973-541-8161
  • Address: World wide:
    Evonik Degussa GmbH
    Industrial Chemicals Business Unit
    Paul-Baumann-Strasse 1
    45764 Marl
    Germany
    Fax: +49-2365-49-19020
    E-mail: industrialchemicals@evonik.com null,nullGermany
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References of 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy
Title: TEMPOL
CAS Registry Number: 2226-96-2
CAS Name: 4-Hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxy
Synonyms: 4-hydroxy-TEMPO; 4-hydroxy-2,2,6,6-tetramethyl piperidine N-oxide; 4-hydroxy-2,2,6,6-tetramethylpiperidinooxy
Molecular Formula: C9H18NO2
Molecular Weight: 172.24
Percent Composition: C 62.76%, H 10.53%, N 8.13%, O 18.58%
Literature References: Stable nitroxyl radical; water-soluble analogue of TEMPO, q.v. Functions as a membrane-permeable radical scavenger. Prepn: E. G. Rozantsev, Bull. Acad. Sci. USSR Div. Chem. Sci. 12, 2085 (1964). Energy transfer studies: N. N. Quan, A. V. Guzzo, J. Phys. Chem. 85, 140 (1981). IR conformation study: W. A. Bueno, L. Degrève, J. Mol. Struct. 74, 291 (1981). Solid state NMR spectra: C. J. Groombridge, M. J. Perkins, J. Chem. Soc. Chem. Commun. 1991, 1164. LC/MS/MS determn: I. D. Podmore, J. Chem. Res. Synop. 2002, 574. Use as a phase transfer catalyst: X.-Y. Wang et al., Synth. Commun. 29, 157 (1999). Review of effects in animal models for shock, ischemia-reperfusion injury, and inflammation: C. Thiemermann, Crit. Care Med. 31, S76-S84 (2003).
Properties: Crystals from ether + hexane, mp 71.5°. uv max (hexane): 240, 450-500 (e ~1800, ~5). uv max (ethanol): 242, 435-455 (e ~3800, ~10). Sol in water.
Melting point: mp 71.5°
Absorption maximum: uv max (hexane): 240, 450-500 (e ~1800, ~5); uv max (ethanol): 242, 435-455 (e ~3800, ~10)
Use: Spin label for EPR studies; phase transfer dehydration catalyst; antioxidant; inhibitor of olefin free radical polymerization.