Skip to Content
Merck
All Photos(1)

Documents

253375

Sigma-Aldrich

3-Maleimido-PROXYL

free radical

Synonym(s):

3-Maleimido-2,2,5,5-tetramethyl-1-pyrrolidinyloxy, free radical

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C12H17N2O3
CAS Number:
5389-27-5
Molecular Weight:
237.27
MDL number:
MFCD00010167
UNSPSC Code:
12352005
PubChem Substance ID:
24855309
NACRES:
NA.22

mp

111-113 °C (lit.)

storage temp.

2-8°C

SMILES string

CC1(C)CC(N2C(=O)C=CC2=O)C(C)(C)N1[O]

InChI

1S/C12H17N2O3/c1-11(2)7-8(12(3,4)14(11)17)13-9(15)5-6-10(13)16/h5-6,8H,7H2,1-4H3

InChI key

HGNHBHXFYUYUIA-UHFFFAOYSA-N

Application

Spin label used for study of local protein structure and for determining molecular changes in erythrocyte membranes.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

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

Visit the Document Library

Angela Tseng et al.
Journal of food science, 77(9), H192-H201 (2012-08-23)
The effects of different drying methods (40 °C conventional and vacuum oven, 25 °C ambient air and freeze dry) on the stability of two red wine grape (Pinot Noir, PN and Merlot, M) byproducts, pomace containing skins and seeds (P)
P D Morse
Biochimica et biophysica acta, 844(3), 337-345 (1985-03-21)
In a recent paper, Daveloose et al. (Daveloose, D., Fabre, G., Berleur, F., Testylier, G. and Letterrier, F. (1983) Biochim. Biophys. Acta 763, 41-49) described a technique to measure the internal microviscosity of erythrocytes using the spin label MAL-3 (2,2,5,5-tetramethyl-3-malimidopyrrolidinyl-N-oxyl)
L Zhao et al.
Biophysical journal, 69(3), 994-999 (1995-09-01)
Electron paramagnetic resonance spectroscopy of a spin probe attached to cys-707 on myosin cross-bridges was used to monitor the orientation of the myosin catalytic domain at the beginning and end of the working power stroke in active muscle. Elevated concentrations
A Wróbel et al.
Biochemistry and molecular biology international, 41(2), 349-357 (1997-02-01)
The sulfhydryl group specific spin labels have been used to study the membrane proteins in the bovine and human erythrocyte membranes treated with ozone. The ratio hw/hs, determined from the respective peak amplitudes of the resulting EPR spectra of 3-maleimido-1-oxyl-2,2,5,5-tetramethylpyrrolidine
Oleg Y Dmitriev et al.
Biochimica et biophysica acta, 1777(2), 227-237 (2008-01-08)
Subunit a in the membrane traversing F0 sector of Escherichia coli ATP synthase is known to fold with five transmembrane helices (TMHs) with residue 218 in TMH IV packing close to residue 248 in TMH V. In this study, we
View All Related Papers

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