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Merck

861006

Sigma-Aldrich

Eosin B

certified by the Biological Stain Commission, Dye content 90 %

Sinónimos:

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

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About This Item

Fórmula lineal:
C20H6N2O9Br2Na2
Número de CAS:
Peso molecular:
624.06
Número de índice de color:
45400
Beilstein:
4121964
Número CE:
Número MDL:
Código UNSPSC:
12171500
ID de la sustancia en PubChem:
NACRES:
NA.47

grado

certified by the Biological Stain Commission

Nivel de calidad

Formulario

powder

composición

Dye content, 90%

técnicas

microbe id | staining: suitable

solubilidad

H2O: 1 mg/mL, clear, red

λmáx.

395 nm
514 nm

aplicaciones

diagnostic assay manufacturing
hematology
histology

temp. de almacenamiento

room temp

cadena SMILES

[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

Clave InChI

GYYTYUGGVBYJHE-UHFFFAOYSA-L

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Aplicación

  • Eosin B has been used for the histological analysis of anal sphincter sections obtained from rats.
  • It has been used along with Mayer′s hematoxylin for the staining of triangularis sterni muscle sections.
  • It has been used along with hematoxylin for the staining of different tissue sections obtained from mouse.

Acciones bioquímicas o fisiológicas

Eosin B is a xanthene dye and is also referred to as eosin bluish or erythrosin B. It is used in the Harris stain for Negri bodies. Eosin B is also used in Mayer′s Hemalum as a counterstain for collagen. Eosin B-Azure A are used together for the staining of cell granules, nuclei and microorganisms. It can also be used for protein estimation. The protein - eosin B complex absorbs at wavelength range of 536–544nm and the change in blue shift helps in determining the protein concentration.

Idoneidad

Counterstain for collagen, following Mayer′s Hemalum. Used with Azure A as a tissue stain for cell granules, nuclei, and microorganisms. For differential staining of cells of the anterior pituitary.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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Bone marrow deficiency of MCPIP1 results in severe multi-organ inflammation but diminishes atherogenesis in hyperlipidemic mice.
Yu F, et al.
PLoS ONE, 8, e80089-e80089 (2013)
Restoration of anal sphincter function after myoblast cell therapy in incontinent rats.
Bisson A, et al.
Cell Transplantation, 24, 277-277 (2015)
Theory and Practice of Histological Techniques (2008)
A A Waheed et al.
Journal of biochemical and biophysical methods, 33(3), 187-196 (1996-12-30)
We describe a detailed procedure for estimating a wide range of proteins by the eosin B dye method. At acidic pH, eosin B binds to proteins and absorption of the protein-dye complex at 536-544 nm is proportional to the concentration
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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