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45260

Sigma-Aldrich

Eosin B

for microscopy (Fl., Hist.), adsorption and fluorescent indicator

Sinonimo/i:

4′,5′-Dibromo-2′,7′-dinitrofluorescein disodium salt, Acid Red 91, Eosin Scarlet, Eosin bluish, Saffrosine

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About This Item

Formula condensata:
C20H6N2O9Br2Na2
Numero CAS:
548-24-3
Peso molecolare:
624.06
Colour Index:
45400
Beilstein:
4121964
Numero CE:
208-943-1
Numero MDL:
MFCD00005041
Codice UNSPSC:
12171500
ID PubChem:
329756626
NACRES:
NA.47

Grado

adsorption and fluorescent indicator
for microscopy (Fl., Hist.)

tecniche

titration: suitable

λmax

509-524 nm

Stringa SMILE

[Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(C(=O)C(Br)=C3Oc4c(Br)c([O-])c(cc24)[N+]([O-])=O)[N+]([O-])=O

InChI

1S/C20H8Br2N2O9.2Na/c21-14-16(25)11(23(29)30)5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(24(31)32)17(26)15(22)19(10)33-18(9)14;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2
GYYTYUGGVBYJHE-UHFFFAOYSA-L

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Descrizione generale

Eosin B is a fluorescent red dye that is used in microscopy to visualise cytoplasm and proteins like collagen.

Applicazioni

Eosin B is an adsorption and fluorescent indicator in microscopy.

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

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

Certificati d'analisi (COA)

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Erythrosin B certified by the Biological Stain Commission, Dye content ≥85 %

Sigma-Aldrich

198269

Erythrosin B

Zhong-Xin Zhu et al.
Analytical biochemistry, 426(1), 1-3 (2012-04-10)
A sensitive and simple technique for the negative detection of lipopolysaccharides (LPSs) following polyacrylamide gel electrophoresis (PAGE) using eosin B (EB) was developed. After electrophoresis, gels were fixed, stained, and developed within 30 min to achieve transparent and colorless LPS
Rebecca Pastrana-Mena et al.
The Journal of biological chemistry, 285(35), 27045-27056 (2010-06-25)
Malaria parasites contain a complete glutathione (GSH) redox system, and several enzymes of this system are considered potential targets for antimalarial drugs. Through generation of a gamma-glutamylcysteine synthetase (gamma-GCS)-null mutant of the rodent parasite Plasmodium berghei, we previously showed that
Syeda Sara Hassan et al.
Journal of hazardous materials, 190(1-3), 1030-1036 (2011-05-13)
We synthesized mefenamic acid (MA) derived gold nanoparticles (MA-AuNps) in aqueous solution (MA-Au sol). Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) of the sol at 1, 5, 15 and 60 min showed changes in size and shape of
Y M Cheng et al.
Neuroscience, 151(4), 1084-1098 (2008-01-19)
We examined the potential contribution of a voltage-gated proton conductance (gH+) to acid extrusion from cultured postnatal rat hippocampal neurons. In neurons loaded with Ca2+- and/or pH-sensitive fluorophores, transient exposures to 25-139.5 mM external K+ (K+o) or 20 microM veratridine
Kristen M Massimine et al.
Antimicrobial agents and chemotherapy, 50(9), 3132-3141 (2006-08-31)
4',5'-Dibromo-2',7'-dinitrofluorescein, a red dye commonly referred to as eosin B, inhibits Toxoplasma gondii in both enzymatic and cell culture studies with a 50% inhibitory concentration (IC(50)) of 180 microM. As a non-active-site inhibitor of the bifunctional T. gondii dihydrofolate reductase-thymidylate
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