253324
3-Carboxy-PROXYL
98%
Synonym(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
Empirical Formula (Hill Notation):
C9H16NO3
CAS Number:
Molecular Weight:
186.23
EC Number:
MDL number:
UNSPSC Code:
12352000
PubChem Substance ID:
NACRES:
NA.22
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Quality Level
Assay
98%
mp
200 °C (dec.) (lit.)
storage temp.
2-8°C
SMILES string
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)
InChI key
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.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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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
M A Foster et al.
Physics in medicine and biology, 43(7), 1893-1897 (1998-08-14)
Proton-electron double-resonance imaging (PEDRI) has considerable value for study of the distribution and elimination pathways of nitroxide free radicals (NFRs). This has been illustrated by its use in studies of kidney function in the living rat in which the NFR
I Katzhendler et al.
Pharmaceutical research, 17(10), 1299-1308 (2001-01-06)
The present study was conducted in order to investigate the correlation between the hydration properties of HPMC and EA matrices, gel microstructure and mobility, crystalline changes occurring in the gel and CBZ release kinetics. The influence of HPMC and EA
B L Bales et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 132(2), 279-286 (1998-06-20)
A simple expression is derived to compute the total Gaussian linewidth of a Voigt line that is broadened by sinusoidal magnetic-field modulation as follows: delta HPPG(Hm)2 = delta HPPG(0)2 + kappa 2Hm2, where delta HPPG(Hm) is the Gaussian linewidth observed
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