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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

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Properties

Related Categories Base Ingredients for Media, Cell Biology, E-F, Hematology and Histology, Indicators,
InChI Key   DBZJJPROPLPMSN-UHFFFAOYSA-N
form   powder
composition   Dye content, ~99%
solubility   ethanol: 1 mg/mL

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

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

Documents

Certificate of Analysis

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Certificate of Origin

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Milli-Q® Water Purification Solutions
Protocols & Articles

Articles

Microbiology Introduction

An initial aim of all microbiologists is the reproducible growth of their microbial cultures, no matter whether the microorganisms are of natural origin or have been genetically engineered by man. Re...
Keywords: Absorption, Aerobic, Anaerobic, Antibiotics, Antimicrobials, Buffers, Culture media, Diffusion, Environmental, Filtration, Genetic, Growth factors, Metabolism, Phase transitions, Precipitation, Reductions, Respiration, Sample preparations, Vitamins

Peer-Reviewed Papers
15

References

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