This product has not been tested for any specific application, including in vivo use. Suitability would have to be determined experimentally by the end user. Historical information suggests that a concentration of 0.5% Evans Blue in PBS at pH 7.4 has been used successfully in staining tissue sections. This concentration may also be effective starting point for in vivo applications. Please refer to available literature for additional information.
E2129
Evans Blue
Dye content ≥75 %, Powder
Sinónimos:
Direct Blue 53
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About This Item
Fórmula empírica (notación de Hill):
C34H24N6Na4O14S4
Número de CAS:
Peso molecular:
960.81
Número de índice de color:
23860
Número CE:
Número MDL:
Código UNSPSC:
12171500
ID de la sustancia en PubChem:
NACRES:
NA.47
En este momento no podemos mostrarle ni los precios ni la disponibilidad
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Nombre del producto
Evans Blue, Dye content ≥75 %
Formulario
powder
Nivel de calidad
composición
Dye content, ≥75%
técnicas
titration: suitable
aplicaciones
diagnostic assay manufacturing
hematology
histology
temp. de almacenamiento
room temp
cadena SMILES
[Na+].[Na+].[Na+].[Na+].Cc1cc(ccc1\N=N\c2ccc3c(cc(c(N)c3c2O)S([O-])(=O)=O)S([O-])(=O)=O)-c4ccc(\N=N\c5ccc6c(cc(c(N)c6c5O)S([O-])(=O)=O)S([O-])(=O)=O)c(C)c4
InChI
1S/C34H28N6O14S4.4Na/c1-15-11-17(3-7-21(15)37-39-23-9-5-19-25(55(43,44)45)13-27(57(49,50)51)31(35)29(19)33(23)41)18-4-8-22(16(2)12-18)38-40-24-10-6-20-26(56(46,47)48)14-28(58(52,53)54)32(36)30(20)34(24)42;;;;/h3-14,41-42H,35-36H2,1-2H3,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;/q;4*+1/p-4/b39-37+,40-38+;;;;
Clave InChI
ATNOAWAQFYGAOY-GPTZEZBUSA-J
Información sobre el gen
human ... PTPN1(5770) , PTPRF(5792)
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Descripción general
Evans blue (EB) C.I. 23860 is a synthetic bis-azo dye also known as T-1824 and Direct Blue 53. EB dye with higher water solubility has a strong affinity towards serum albumin, making it a high molecular weight protein tracer.
Aplicación
Evans blue is a well-known vital stain with applications in histology and fluorescent microscopy. Evans blue has been used to check cell viability and study blood-brain barrier (BBB) permeability. Additional applications include the demonstration of specific pituitary cell types, selective staining of neutrophil plasma membranes, and fluorescence microscopy as a quenching agent to suppress unwanted autofluorescence.
Acciones bioquímicas o fisiológicas
Evans blue is a non-permeating dye. In presence of plasma membrane damage, the dye enters in the cytoplasm and nucleus, thereby staining them blue. Evans blue is used for checking cell viability.[1] It is also used to study BBB (blood-brain barrier) permeability. The dye binds to albumin and hence indicates BBB breakdown to protein.[2]
Palabra de señalización
Danger
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Carc. 1B
Código de clase de almacenamiento
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Clase de riesgo para el agua (WGK)
WGK 3
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
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Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
Henry Puerta-Guardo et al.
Journal of virology, 87(13), 7486-7501 (2013-04-26)
Severe dengue (SD) is a life-threatening complication of dengue that includes vascular permeability syndrome (VPS) and respiratory distress. Secondary infections are considered a risk factor for developing SD, presumably through a mechanism called antibody-dependent enhancement (ADE). Despite extensive studies, the
Brian P Eliceiri et al.
Methods in molecular biology (Clifton, N.J.), 686, 371-378 (2010-11-18)
The blood-brain barrier (BBB) is a monolayer of endothelial cells that is regulated by the proximity of a unique basement membrane and a tightly controlled molecular interaction between specialized subsets of cells including pericytes, astrocytes, and neurons. Working together, these
Yulian Zhou et al.
The Journal of clinical investigation, 124(9), 3825-3846 (2014-08-02)
Canonical WNT signaling is required for proper vascularization of the CNS during embryonic development. Here, we used mice with targeted mutations in genes encoding canonical WNT pathway members to evaluate the exact contribution of these components in CNS vascular development
Pilhan Kim et al.
Nature methods, 7(4), 303-305 (2010-03-17)
In vivo imaging of small animals offers several possibilities for studying normal and disease biology, but visualizing organs with single-cell resolution is challenging. We describe rotational side-view confocal endomicroscopy, which enables cellular imaging of gastrointestinal and respiratory tracts in mice
CO2 is the main inorganic C species entering photosynthetically active leaf protoplasts of the freshwater macrophyte Ranunculus penicillatus ssp. pseudofluitans.
Plant, Cell and Environment, 22, 1019-1026 (1999)
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What amount and concentration should I use Evans-Blaun injecting it into the ear skin of a mouse to see Evans-Blue in the draining Lymphnodes afterwards?
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How to prepare a stock 1% solution using E2129, and is ther any guidance on its use?
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A 0.5% solution of Evans Blue in PBS, pH 7.4. Product P3813 should be used as the PBS, which will serve as the stock solution. For use, 3-4 drops should be added to 100 mL of PBS P3813. This should be used as the final rinse with a 5-minute wash. After rinsing briefly, coverslip the sample.
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What is the stability of the E2129 solution once prepared?
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The stability of the solution will depend on whether the solutions are sterile filtered or contaminated through routine use. It's recommended to store the solutions in the dark at 2-8°C.
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Should Evans Blue solutions for fluorescent assays be aged or cured for 7 days before use?
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While some dyes require aging before use, there is no indication that Evans Blue solutions need to be aged or cured before use.
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How do I dilute 80% purity evans blue powder into a 2% solution with normal saline?
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This product is soluble in water at 60 mg/mL. For typical laboratory staining applications, a 1X PBS solution is also commonly used. Solubility in normal saline has not been evaluated, but rates are expected to be similar. A 2% solution would be 20 mg/mL. The dye content is lot-specific and reported in the Certificate of Analysis. Please see the link below to access a sample or batch-specific Certificate:
https://www.sigmaaldrich.com/product/sigma/e2129#product-documentationHelpful?
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What is the solution stability of Product E2129, Evans Blue?
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This product is rather stable in aqueous solution and may be autoclaved at 15 psi for 30 min. However, dye made up in physiological saline should not be autoclaved.
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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How should Product E2129, Evans Blue, be dissolved?
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This product is soluble in water, alcohol, acids and alkalies.
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Can Evans Blue, Product E2129, be used as a counterstain for FITC?
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This product can be used as a counterstain in immunohistochemistry when using FITC. After staining for immunofluorescence, dip sections in a 0.1% (w/v) in water solution of Evans Blue for 5-10 minutes. Rinse well in fresh PBS or water before coverslipping. Reference: Immunocytochemistry, Theory and Practice, p. 82 (1988).
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What is the shelf life of Product E2129, Evans Blue?
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This product has a retest date of 4 years. This information can be found on the Certificate of Analysis.
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