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SML1961

Sigma-Aldrich

EF5

≥98% (HPLC)

Sinonimo/i:

2-(2-Nitro-1H-imidazol-1-yl)-N-(2,2,3,3,3-pentafluoropropyl)acetamide, EF-5, NSC 684681

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About This Item

Formula empirica (notazione di Hill):
C8H7F5N4O3
Numero CAS:
Peso molecolare:
302.16
Codice UNSPSC:
12352200
NACRES:
NA.77

Livello qualitativo

Saggio

≥98% (HPLC)

Forma fisica

powder

Colore

white to beige

Solubilità

DMSO: 10 mg/mL, clear

Temperatura di conservazione

2-8°C

Stringa SMILE

O=C(NCC(F)(F)C(F)(F)F)CN1C=CN=C1[N+]([O-])=O

InChI

1S/C8H7F5N4O3/c9-7(10,8(11,12)13)4-15-5(18)3-16-2-1-14-6(16)17(19)20/h1-2H,3-4H2,(H,15,18)
JGGDSDPOPRWSCX-UHFFFAOYSA-N

Azioni biochim/fisiol

EF5 is a 2-nitroimidazole-based hypoxia marker corresponding to a pentafluorinated derivative of the hypoxic cell-radiation sensitizer etanidazole. Under low oxygen (hypoxic) condition, reductive activation of its 2-nitroimidazole moiety leads to enhanced EF5 adduct formation with protein thiols and reduced glutathione. The pentafluorination derivatization substantially decreases the proportion of low molecular weight hydrolytic fragmentation of the adducts, making EF5 superior to etanidazole when utilized as a hypoxia marker by immunohistological staining.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


Certificati d'analisi (COA)

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S M Evans et al.
British journal of cancer, 72(4), 875-882 (1995-10-01)
One of the most sensitive hypoxia detection methods is based on the observation that binding of nitroimidazoles to cellular macromolecules occurs as a result of hypoxia-dependent bioreduction by cellular nitroreductases. Nitroimidazole-binding techniques provide measurements of hypoxia to virtually any degree
E M Lord et al.
Cancer research, 53(23), 5721-5726 (1993-12-01)
Hypoxic cells in tissue pose many medical problems, and there is a need for more accurate measurements of tissue hypoxia. However, measurement of the pO2 and the extent of hypoxia within normal and tumor tissue have proven difficult. One of
Sung Hoon Cho et al.
Nature, 537(7619), 234-238 (2016-08-09)
Germinal centres (GCs) promote humoral immunity and vaccine efficacy. In GCs, antigen-activated B cells proliferate, express high-affinity antibodies, promote antibody class switching, and yield B cell memory. Whereas the cytokine milieu has long been known to regulate effector functions that

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