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Merck

E2129

Evans Blue

Dye content ≥75 %, Powder

Sinónimos:

Direct Blue 53

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Fórmula empírica (notación de Hill):
C34H24N6Na4O14S4
Número CAS:
314-13-6
Peso molecular:
960.81
NACRES:
NA.47
PubChem Substance ID:
24894456
UNSPSC Code:
12171500
EC Number:
206-242-5
MDL number:
MFCD00004021
Colour Index Number:
23860

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Nombre del producto

Evans Blue, Dye content ≥75 %

InChI key

ATNOAWAQFYGAOY-GPTZEZBUSA-J

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+;;;;

SMILES string

[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

form

powder

composition

Dye content, ≥75%

technique(s)

titration: suitable

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

200

Gene Information

human ... PTPN1(5770), PTPRF(5792)

Categorías relacionadas

General description

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.

Application

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.

Biochem/physiol Actions

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. It is also used to study BBB (blood-brain barrier) permeability. The dye binds to albumin and hence indicates BBB breakdown to protein.

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H350

Hazard Classifications

Carc. 1B

Clase de almacenamiento

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
SHBT1317
SHBR6277
SHBQ4846
SHBP1253
SHBP6688

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