Eosin Y (yellowish) 5 wt. % in H₂O in aqueous solution, Sigma-Aldrich®
Supplier: SIGMA-ALDRICH MICROSCOPYTotal Ratings: 0
Avg. Ratings: 0.0 out of 5
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Warning
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Synonyms:
Tetrabromofluorescein disodium salt
, Eosin Y disodium salt
, Eosin 225
, 2′,4′,5′,7′-Tetrabromofluorescein disodium salt
, Solvent Red 43
, Disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate
, Disodium 2',4',5',7'-tetrabromo-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate)
, Field's Stain B
, 2,4,5,7-Tetrabromofluorescein disodium salt
M-Clarity™ quality level = MQ100
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 and 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.
Eosin Y is suitable for use in hematoxylin and eosin (H and E) staining procedures for various tissue samples like lung nodule and kidney sections.
Formula:
C₂₀H₆Br₄Na₂O₅ MW: 691.86 g/mol Density: 1,015 g/ml (25 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00005040 CAS Number: 17372-87-1 EINECS: 241-409-6 |
Specification Test Results
Appearance (Colour) | Red to Very Dark Red |
Appearance (Form) | Liquid |
Wavelength, In Water and 1% Na2CO3 | 514 - 520 nm |
Extinction Coefficient | ≥86000 |
Wavelength | 339 - 345 nm |
Extinction Coefficient | ≥5000 |
Wavelength | 298 - 304 nm |
Extinction Coefficient | ≥14000 |
Wavelength | 252 - 258 nm |
Extinction Coefficient | ≥33000 |
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