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
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352000
EC Number:
218-448-2
MDL number:
Assay:
98%
InChI key
GEPIUTWNBHBHIO-UHFFFAOYSA-N
InChI
1S/C9H16NO3/c1-8(2)5-6(7(11)12)9(3,4)10(8)13/h6H,5H2,1-4H3,(H,11,12)
SMILES string
CC1(C)CC(C(O)=O)C(C)(C)N1[O]
assay
98%
mp
200 °C (dec.) (lit.)
storage temp.
2-8°C
Quality Level
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
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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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
I Seimenis et al.
Magnetic resonance in medicine, 37(4), 552-558 (1997-04-01)
Proton electron double resonance imaging (PEDRI) was used for monitoring in vivo the distribution, metabolism and, in particular, the excretion mechanism of the exogenous nitroxide free radical proxyl carboxylic acid (PCA) in the rat. PCA clearance half-lives through liver, abdominal
J. Chem. Soc., Faraday, 87, 947-947 (1991)
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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