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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1 G
₩953,288
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1 G
₩953,288
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
Assay:
98%
Recommended Products
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.[1]
Used in the preparation of a tetraphenylporphyrin bearing a nitroxyl radical.[2]
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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V Quaresima et al.
Physics in medicine and biology, 43(7), 1937-1947 (1998-08-14)
Much outstanding progress concerning the application of ESR spectroscopy/imaging in the biomedical field has been made in recent years. The literature in this field has already been specifically covered by several reviews. The aim of this article is to provide
M A Pals et al.
Investigative radiology, 22(6), 497-501 (1987-06-01)
Contrast agents have been investigated in an effort to increase the differences between the proton relaxation times of normal and pathologic tissue, and thus improve the ability to detect regions of pathology. Data on the oxygen-dependent metabolism of three nitroxides
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
J Buitink et al.
Biophysical journal, 76(6), 3315-3322 (1999-06-04)
The relationship between molecular mobility (tauR) of the polar spin probe 3-carboxy-proxyl and water content and temperature was established in pea axes by electron paramagnetic resonance (EPR) and saturation transfer EPR. At room temperature, tauR increased during drying from 10(-11)
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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