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A12497 4-Hydroxy-TEMPO, free radical, 98+%

Codice CAS
2226-96-2
Sinonimi
4-Hydroxy-2,2,6,6-tetramethyl-1-piperidin-1-yloxy, free radical

Stock No. Dimensioni Prezzo ($) Quantità Disponibilità
A12497-03 1g 25,60
A12497-06 5g 68,30
A12497-14 25g 266,00
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4-Hydroxy-TEMPO, free radical, 98+%

MDL
MFCD00006478
EINECS
218-760-9

Proprietà chimiche

Formula
C9H18NO2
Peso formula
172.25
Punto di fusione
69-72°
Punto di infiammabilità
146°(295°F)
Storage & Sensitivity
Keep Cold.
Solubilità
Soluble in water, ethanol, methanol and dimethyl sulfoxide.

Applicazioni

Superoxide scavenger with neuroprotective, anti-inflammatory and analgesic effects4-Hydroxy-TEMPO free radical is used as a catalyst and a chemical oxidant by virtue of being a stable radical. It is used for detoxifying reactive oxygen species in medicinal chemistry. It is involved in the catalysis of disproportionation of superoxide and facilitates hydrogen peroxide metabolism. It is used to prepare tris(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)trimellitate by reacting with benzene-1,2,4-tricarbonyl trichloride. Further, it is used as a free radical scavenger and exhibits neuroprotective, anti-inflammatory and analgesic effects. In addition to this, it has good inhibition effect to acrylic acid esters, methyl acrylate, acrylic acid, acrylonitrile, styrene and butadiene.

Note

Store in a cool place. Incompatible with strong oxidizing agents.

Letteratura

Reviews: Synthesis and reactions of stable nitroxyl radicals: Synthesis, 190, 401 (1971); Advances in the chemistry of nitroxide spin labels: Chem. Rev., 78, 37 (1978); Recent advances in the chemistry of nitroxides and their applications in spin labelling: J. Sci. Ind. Res., 54, 623 (1995). For a brief feature on derived oxoammonium salts, see: Synlett, 1757 (2003).

Compare also 4-Acetamido-TEMPO, B23456 and TEMPO, A12733.

Recommended as a stabilizer (antioxidant) for the protection of unsaturated fatty acids and their derivatives: J. Am. Chem. Soc., 101, 6748 (1979).

żamoj?, K.; Wiczk, W.; Zaborowski, B.; Jacewicz, D.; Chmurzyński, L. Analysis of Fluorescence Quenching of Coumarin Derivatives by 4-Hydroxy-TEMPO in Aqueous Solution. J. Fluoresc. 2014, 24 (3), 713-718.

żamoj?, K.; Zdrowowicz, M.; Wiczk, W.; Jacewicz, D.; Chmurzyński, L. Dihydroxycoumarins as highly selective fluorescent probes for the fast detection of 4-hydroxy-TEMPO in aqueous solution. RSC Adv. 2015, 5 (78), 63807-63812.

Sunkaria, A.; Sharma, D. R.; Wani, W. Y.; Gill, K. D. Attenuation of Dichlorvos-Induced Microglial Activation and Neuronal Apoptosis by 4-Hydroxy TEMPO. Mol. Neurobiol. 2014, 49 (1), 163-175.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302-H315-H318-H335

Harmful if swallowed. Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.

Dichiarazioni precauzionali: P280-P305+P351+P338-P310a

Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor

Altri riferimenti

Beilstein
1422990
Codice tariffe armonizzato
2933.39
TSCA
Yes
RTECS
TN8991000

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