Eosin Y ∼99% (dye content), Sigma-Aldrich®
Supplier: SIGMA-ALDRICH MICROSCOPY
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Warning
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Synonyms:
Acid Red 87, Tetrabromofluorescein, 2-(3,6-Dihydroxy-2,4,5,7-tetrabromoxanthen-9-yl)-benzoic acid, 2,4,5,7-Tetrabromofluorescein, Eosin yellowish, Solvent red 43, Bromofluorescein, Bromo acid J. TS, XL, or XX, CI 45380, Bronze Bromo ES, Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 2',4',5',7'-tetrabromo-3',6'-dihydroxy-
M-Clarity™ quality level = MQ200
Eosin Y is a xanthene dye and is used for the differential staining of connective tissue and cytoplasm. In histopathology, it is applied as a counterstain after hematoxylin and before methylene blue. It is also used as a background stain, thereby giving contrast to the nuclear stains.
- Eosin Y has been used as a stain
- To determine the location of the brain sections
- For staining of fixed liver tissue
- For histological examination of brain sections from the dorsal hippocampus
Formula:
C₂₀H₈Br₄O₅ MW: 647,89 g/mol Melting Pt: 295…296 °C Storage Temperature: Room Temperature |
MDL Number:
MFCD00036189 CAS Number: 15086-94-9 EINECS: 241-409-6 Merck Index: 13,03634 |
Specification Test Results
Appearance (Colour) | Light Red to Red and Pink |
Appearance (Form) | Powder |
Infrared spectrum | Conforms to Structure |
Solubility (Colour) Orange c = 1 mg/ml; Ethanol |
Conforms |
Solubility (Turbidity) | Clear to Very Hazy |
Carbon | 33.4 - 40.8 % |
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