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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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Chloé E Atreya et al.
The Journal of biological chemistry, 278(16), 14092-14100 (2003-01-31)
Protozoal parasites are unusual in that their thymidylate synthase (TS) and dihydrofolate reductase (DHFR) enzymes exist on a single polypeptide. In an effort to probe the possibility of substrate channeling between the TS and DHFR active sites and to identify
Xu Wang et al.
Electrophoresis, 31(23-24), 3808-3815 (2010-11-17)
In this study, we describe an effective visualizing technique for proteins in SDS-PAGE based on the organic dye, Eosin B, the sensitivity of which can be further strengthened by the addition of magnesium to the staining solution after electrophoresis. The
Jishu Naskar et al.
Organic & biomolecular chemistry, 9(19), 6610-6615 (2011-08-13)
Self-assembling short peptides can offer an opportunity to make useful nano-/microstructures that find potential application in drug delivery. We report here the formation of multivesicular structures from self-assembling water-soluble synthetic amphiphilic dipeptides containing a glutamic acid residue at the C-terminus.
A A Waheed et al.
Analytical biochemistry, 287(1), 73-79 (2000-11-18)
Eosin B and eosin Y have been used to estimate micro- and submicrogram quantities of proteins respectively as shown in our previous reports. In the present study we describe the mechanism of eosin binding to proteins. At pH lower than
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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