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E4009 Sigma-Aldrich

Eosin Y

Dye content ~99 %

Synonym: 2′,4′,5′,7′-Tetrabromofluorescein, Acid Red 87, Bromo acid J. TS, XL, or XX, Bromofluorescein, Bronze Bromo ES, Eosin yellowish, Solvent red 43

  • CAS Number 15086-94-9

  • Empirical Formula (Hill Notation) C20H8Br4O5

  • Molecular Weight 647.89

  •  Colour Index Number 45380:2

  •  EC Number 239-138-3

  •  MDL number MFCD00036189

  •  PubChem Substance ID 24894536

  •  NACRES NA.47

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Properties

Related Categories Base Ingredients for Media, Cell Biology, E-F, Hematology and Histology, Indicators,
Quality Level   200
form   powder
composition   Dye content, ~99%
solubility   ethanol: 1 mg/mL
SMILES string   Oc1c(Br)cc2c(Oc3c(Br)c(O)c(Br)cc3C24OC(=O)c5ccccc45)c1Br
InChI   1S/C20H8Br4O5/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20/h1-6,25-26H
InChI key   DBZJJPROPLPMSN-UHFFFAOYSA-N

Description

Application

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

Packaging

5, 25 g in glass bottle

Biochem/physiol Actions

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.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
LM5800000

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

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Peer-Reviewed Papers
15

References

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