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Merck
CN

253359

Sigma-Aldrich

4-马来酰亚胺-四甲基哌啶氧化物

for ESR-spectroscopy

别名:

4-马来酰亚胺-2,2,6,6-四甲基-1-氧化哌啶,自由基

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About This Item

经验公式(希尔记法):
C13H19N2O3
CAS号:
分子量:
251.30
MDL编号:
UNSPSC代码:
12352005
PubChem化学物质编号:
NACRES:
NA.22

等级

for ESR-spectroscopy

描述

free radical

表单

solid

mp

91-94 °C (lit.)

官能团

imide
maleimide

储存温度

2-8°C

SMILES字符串

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

InChI

1S/C13H19N2O3/c1-12(2)7-9(8-13(3,4)15(12)18)14-10(16)5-6-11(14)17/h5-6,9H,7-8H2,1-4H3

InChI key

CMNDHIFMYRPBGH-UHFFFAOYSA-N

一般描述

4-马来酰亚胺-四甲基哌啶氧化物(4-Maleimido-TEMPO),水溶性氮氧自由基,常用作自旋探针。据报道,其1mM浓度可抑制CHO细胞存活。广泛用作EPR(电子顺磁共振)研究的马来酰亚胺自旋探针。

应用

4-马来酰亚胺-TEMPO(4-马来酰亚胺-四甲基哌啶氧自由基)已作为电子顺磁共振光谱法(EPR)自旋探针,研究胆盐对大鼠完整线粒体膜的影响。也可作为自旋探针标记红细胞膜,通过EPR光谱技术研究槲皮素和红细胞蛋白的相互作用。

生化/生理作用

用于研究脑突触体膜流动性、红细胞内微粘度和人高密度脂蛋白的自旋标记物。

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

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

靶器官

Respiratory system

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


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X Jiang et al.
Science (New York, N.Y.), 276(5316), 1261-1264 (1997-05-23)
Ligand-gated membrane channels selectively facilitate the entry of iron into prokaryotic cells. The essential role of iron in metabolism makes its acquisition a determinant of bacterial pathogenesis and a target for therapeutic strategies. In Gram-negative bacteria, TonB-dependent outer membrane proteins
Bozena Pawlikowska-Pawlega et al.
Biochemical pharmacology, 66(4), 605-612 (2003-08-09)
Quercetin is a naturally occurring flavonoid that exerts multiple pharmacological effects. In our previous study, we showed that quercetin greatly affects the lipid membrane. In this report, a study of quercetin on human erythrocyte membrane has been performed to determine
Fantao Meng et al.
Artificial cells, nanomedicine, and biotechnology, 47(1), 73-82 (2019-01-22)
Compromised microcirculation and endothelial dysfunction are hallmarks of sickle cell disease (SCD). EAF PEG Haemoglobin (Hb) and EAF PEG Albumin (Alb) represent a novel class of semisynthetic colloidal supra plasma expanders that improve microcirculation. The therapeutic activity of supra plasma
Q Garrett et al.
Biomaterials, 20(14), 1345-1356 (1999-07-14)
Human serum albumin (HSA) was specifically spin labelled with 4-maleimido-tempo (MSL) at its cysteine 34 residue (HSA-MSL). The irreversible adsorption of HSA-MSL to hydrogel contact lenses (etafilcon A, tefilcon and vifilcon A) was investigated using electron spin resonance (ESR) spectroscopy.
M Soszyński et al.
Free radical biology & medicine, 23(3), 463-469 (1997-01-01)
The effect of several oxidative agents (hydrogen peroxide, tert-butyl hydroperoxide, menadione, AAPH, peroxynitrite and ionizing radiation) on the ratio of weakly to strongly immobilized residues of erythrocyte membrane-bound maleimide-tempo spin label (h(w)/h(s) ratio) was studied in order to test the

商品

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。

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