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%
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
Application
Used in the preparation of a tetraphenylporphyrin bearing a nitroxyl radical.
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.
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
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