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Key Documents

382000

Sigma-Aldrich

4-Carboxy-TEMPO, free radical

97%

Synonym(s):

4-Carboxy-2,2,6,6-tetramethylpiperidine 1-oxyl, 4-Carboxy-2,2,6,6-tetramethylpiperidinyloxy, free radical, 4-Carboxy-TEMPO

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About This Item

Empirical Formula (Hill Notation):
C10H18NO3
CAS Number:
Molecular Weight:
200.25
Beilstein/REAXYS Number:
3949026
MDL number:
UNSPSC Code:
12352000
PubChem Substance ID:
NACRES:
NA.22

assay

97%

mp

185-189 °C (lit.)

storage temp.

2-8°C

SMILES string

CC1(C)CC(CC(C)(C)N1[O])C(O)=O

InChI

1S/C10H18NO3/c1-9(2)5-7(8(12)13)6-10(3,4)11(9)14/h7H,5-6H2,1-4H3,(H,12,13)

Inchi Key

CYQGCJQJIOARKD-UHFFFAOYSA-N

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General description

4-Carboxy-TEMPO is a 4-substituted 2,2,6,6-tetramethylpiperidyl-1-oxy (TEMPO) derivative. 4-carboxy-TEMPO immobilized with 3-aminopropylsilane on the mesoporous silica surface comprises heterogeneous catalytic system employed for various oxidation reactions.

Application

4-Carboxy-TEMPO may be employed as catalyst for the oxidation of regenerated cellulose (viscose rayon) to cellouronic acid.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

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Martina Schleicher et al.
International journal of biomaterials, 2012, 397813-397813 (2012-04-07)
In vivo self-endothelialization by endothelial cell adhesion on cardiovascular implants is highly desirable. DNA-oligonucleotides are an intriguing coating material with nonimmunogenic characteristics and the feasibility of easy and rapid chemical fabrication. The objective of this study was the creation of
G M Rosen et al.
Radiology, 163(1), 239-243 (1987-04-01)
The diagnosis of various disorders of the cerebrospinal fluid (CSF) with magnetic resonance (MR) imaging may require the intrathecal administration of a paramagnetic contrast agent. Furthermore, the CSF route provides direct access to the brain, circumventing the blood-brain barrier. Three
Fei Wang et al.
PloS one, 8(6), e64722-e64722 (2013-06-14)
In this study, the host-guest behavior of poly(amidoamine) (PAMAM) dendrimers bearing amine, hydroxyl, or carboxylate surface functionalities were investigated by paramagnetic NMR studies. 2,2,6,6-Tetramethylpiperidinyloxy (TEMPO) derivatives were used as paramagnetic guest molecules. The results showed that TEMPO-COOH significantly broaden the
Kazuyuki Hosokawa et al.
Free radical biology & medicine, 37(7), 946-952 (2004-09-01)
Three water-soluble carboxy nitroxide antioxidants, 5-carboxy-1,1,3,3-tetramethylisoindolin-2-yloxyl, 4-carboxy-2,2,6,6-tetramethylpiperidin-1-yloxyl, and 3-carboxy-2,2,5,5-tetramethylpyrrolidin-1-yloxyl, show significant impact on the postirradiation survival rates of ataxia telangiectasia (A-T) cells compared to normal cells, an assay which represents a model for understanding the impact of ROS damage on
Comparison of two MCM-41 grafted TEMPO catalysts in selective alcohol oxidation.
Brunel D, et al.
Applied Catalysis A: General, 213(1), 73-82 (2001)

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