Skip to Content
Merck
CN

382000

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

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C10H18NO3
CAS Number:
37149-18-1
Molecular Weight:
200.25
UNSPSC Code:
12352000
NACRES:
NA.22
PubChem Substance ID:
24863856
MDL number:
MFCD00134569
Beilstein/REAXYS Number:
3949026

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

4-Carboxy-TEMPO, free radical, 97%

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)

SMILES string

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

InChI key

CYQGCJQJIOARKD-UHFFFAOYSA-N

assay

97%

mp

185-189 °C (lit.)

functional group

carboxylic acid

storage temp.

2-8°C

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Application

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

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.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000289023
0000289023
0000193894
0000190817
0000177586

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

J L Lamarque et al.
European journal of radiology, 6(1), 48-52 (1986-02-01)
The meglumine salt of TCA, a piperidinyl nitroxide stable free radical derivative, was tested as an NMR contrast enhancer. This report of its use in animals indicates its usefulness in the enhancement of signal intensity of the kidney and bladder.
X Yang et al.
Biophysical journal, 71(3), 1587-1595 (1996-09-01)
Electron paramagnetic resonance spectroscopy and gel permeation chromatography were employed to study the molecular diffusion of a number of small nitroxide spin probes (approximately 7-9 A diameter) into the central cavity of the iron-storage protein ferritin. Charge and polarity of
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)
Nitroxide-mediated oxidation of cellulose using TEMPO derivatives: HPSEC and NMR analyses of the oxidized products.
Shibata I and Isogai A.
Cellulose, 10(4), 335-341 (2003)
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
View All Related Papers

Articles

TEMPO催化氧化

TEMPO（2,2,6,6-四甲基哌啶氧基或2,2,6,6-四甲基哌啶1-氧基）及其衍生物在有机氧化反应催化剂中可以作为稳定的硝酰基使用。TEMPO由Lebedev和Kazarnovskii于1960年发现，其具有的稳定自由基性质得益于其庞大的取代基团阻碍了自由基与其他分子之间发生反应。

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service