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253324

Sigma-Aldrich

3-Carboxy-PROXYL

98%

Sinónimos:

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

Fórmula empírica (notación de Hill):
C9H16NO3
Número de CAS:
2154-68-9
Peso molecular:
186.23
EC Number:
218-448-2
MDL number:
MFCD00003167
UNSPSC Code:
12352000
PubChem Substance ID:
24855305
NACRES:
NA.22

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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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4-Hydroxy-TEMPO 95%

Sigma-Aldrich

176141

4-Hydroxy-TEMPO

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
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)
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
Chemistry Letters (Jpn), 33, 460-460 (2004)
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
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