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253324

Sigma-Aldrich

3-Carboxy-PROXYL

98%

Synonyme(s) :

3-(Carboxy)-2,2,5,5-tetramethyl-1-pyrrolidinyloxy, 3-Carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyloxy, free radical

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About This Item

Formule empirique (notation de Hill):
C9H16NO3
Numéro CAS:
2154-68-9
Poids moléculaire :
186.23
Numéro CE :
218-448-2
Numéro MDL:
MFCD00003167
Code UNSPSC :
12352000
ID de substance PubChem :
24855305
Nomenclature NACRES :
NA.22

Niveau de qualité

100

Pureté

98%

Pf

200 °C (dec.) (lit.)

Température de stockage

2-8°C

Chaîne SMILES 

CC1(C)CC(C(O)=O)C(C)(C)N1[O]

InChI

1S/C9H16NO3/c1-8(2)5-6(7(11)12)9(3,4)10(8)13/h6H,5H2,1-4H3,(H,11,12)

Clé InChI

GEPIUTWNBHBHIO-UHFFFAOYSA-N

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Application

Spin-label that has been used to study molecular migration and long-term stability of seeds and pollen. Has been covalently attached to oligonucleotides to prepare a DNA probe sensitive to electron spin resonance. The acetoxymethyl ester is an esterase-sensitive probe that crosses the blood-brain barrier for electron spin resonance-computed tomographic imaging.
Spin-label. The anionic form has been used to determine distribution coefficients of neutral solubilizates in anionic micelles.
Used in the preparation of a tetraphenylporphyrin bearing a nitroxyl radical.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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4-Hydroxy-TEMPO 95%

Sigma-Aldrich

176141

4-Hydroxy-TEMPO

K Mäder et al.
Pharmaceutical research, 14(6), 820-826 (1997-06-01)
The purpose of this study was to compare drug release and polymer erosion from biodegradable P(FAD-SA) polyanhydrides in vitro and in vivo in real time and with minimal disturbance of the investigated system. P(FAD-SA) 20:80 and P(FAD-SA) 50:50 polymer tablets
M Alecci et al.
Physics in medicine and biology, 43(7), 1899-1905 (1998-08-14)
The use of RF (100 to 300 MHz) PEDRI and CW-EPR techniques allows the in vivo study of large animals such as whole rats and rabbits. Recently a PEDRI instrument was modified to also allow CW-EPR spectroscopy with samples of
S Zöllner et al.
The Journal of biological chemistry, 272(37), 23076-23080 (1997-09-12)
Nitroxides are known to exert superoxide dismutase-mimetic properties and to decrease O-2- and H2O2-mediated cytotoxicity. However, the effect of nitroxides on .NO homeostasis has not been studied yet. The present study investigates the effect of nitroxides on the detectable amount
M Alecci et al.
Biophysical journal, 67(3), 1274-1279 (1994-09-01)
A radio frequency (RF) (280 MHz) electron paramagnetic resonance (EPR) spectroscopy and imaging apparatus has been used to localize a pyrrolidine nitroxide free radical in the rat abdomen and thorax. The nitroxide 2,2.5.5,-tetramethylpyrrolidine-1-oxyl-3- carboxylic acid (PCA) had a whole body
K Takeshita et al.
Biochemical and biophysical research communications, 177(2), 874-880 (1991-06-14)
Clearance of the nitroxide radicals, hydroxy-TEMPO and carboxy-PROXYL, in whole-mouse lung was directly measured by in vivo ESR. After injecting a nitroxide radical, distribution of the nitroxide radical all over the lung was confirmed by ESR imaging. The ESR signal
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