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E5388

Eosin Y disodium salt

Name: Eosin Y disodium salt
Brand: SIGMA

suitable for electrophoresis, suitable for stain in acid uregel system

Synonym(s):

2′,4′,5′,7′-Tetrabromofluorescein disodium salt, Acid Red 87, Bromo acid J. TS, XL, or XX, Bromofluorescein, Bronze Bromo ES, D&C;Red No. 22, Eosin yellowish

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About This Item

Empirical Formula (Hill Notation):

C₂₀H₆Br₄Na₂O₅

CAS Number:

17372-87-1

Molecular Weight:

691.85

UNSPSC Code:

12171500

EC Number:

241-409-6

Beilstein/REAXYS Number:

3586809

Colour Index Number:

45380

MDL number:

MFCD00005040

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composition

Dye content, ~85%

technique(s)

electrophoresis: suitable

suitability

suitable for stain in acid uregel system

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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pictograms

GHS07

signalword

Warning

hcodes

H317,H319

pcodes

P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338

Hazard Classifications

Eye Irrit. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

376.9 °F - Pensky-Martens closed cup

flash_point_c

191.6 °C - Pensky-Martens closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Lillie, R.D.

Conn?s Biological Stains, 342-342 (1977)

Eosin Y: a reversible stain for detecting electrophoretically resolved protein.

M E Selsted et al.

Analytical biochemistry, 155(2), 270-274 (1986-06-01)

A method for the rapid staining of polypeptides in low-pH, urea-containing polyacrylamide gels is described. After 30 s of immersion in an alkaline solution of eosin Y, a variety of proteins stained with intensities similar to those seen with Coomassie