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318906

Sigma-Aldrich

Eosin Y solution

5 wt. % in H2O

Synonym(s):

2′,4′,5′,7′-Tetrabromofluorescein disodium salt, Acid red 87, Eosin yellowish solution

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About This Item

Empirical Formula (Hill Notation):
C20H6Br4Na2O5
CAS Number:
17372-87-1
Molecular Weight:
691.85
Beilstein/REAXYS Number:
1443944
MDL number:
MFCD00005040
UNSPSC Code:
12171500
PubChem Substance ID:
24858876
NACRES:
NA.47

form

liquid

Quality Level

100

concentration

5 wt. % in H2O

color

red to very dark red

density

1.015 g/mL at 25 °C

λmax

518 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

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

InChI

1S/C20H8Br4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2

InChI key

SEACYXSIPDVVMV-UHFFFAOYSA-L

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General description

Eosin Y, also known as Eosin yellowish is a widely used xanthene dye. It is a counterstain that is used to distinguish between various connective tissue fibers & matrices, and the cytoplasm of different types of cells. Eosin in combination with hematoxylin is useful to demonstrate the general histological architecture of a tissue.

Application

Eosin Y is suitable for use in hematoxylin and eosin (H&E) staining procedures for various tissue samples like lung nodule and kidney sections.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H317

Hazard Classifications

Skin Sens. 1

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
SHBR0382
SHBQ4346
SHBP1765
SHBP1049
SHBN7854

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The utility of visible-light-mediated polymerization in tissue engineering has been limited due to the necessary use of potentially cytotoxic coinitiator and comonomer. Here, we report a visible-light-mediated thiol-ene hydrogelation scheme using eosin-Y as the only photoinitiator. Under visible light exposure
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Virchows Archiv : an international journal of pathology, 461(6), 629-638 (2012-10-16)
For treatment purposes, distinction between squamous cell carcinoma and adenocarcinoma is important. The aim of this study is to examine the diagnostic accuracy on lung cancer small biopsies for the distinction between adenocarcinoma and squamous cell carcinoma and relate these
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