Ethyl Eosin

Property Data
Common name
Suggested name
Other names
 
C.I. number
C.I. name
Class
Ionisation
Solubility aqueous
Solubility ethanol
Absorption maximum
 
Colour
Empirical formula
Formula weight
 
 Ethyl eosin
Ethyl eosin
Alcohol soluble eosin
Spirit soluble eosin
45386
Solvent red 45
Fluorone
Acid
0.03%
1.13%
524-527 (Conn)
532 (Aldrich, Gurr)
Red
C22H11O5Br4Na
698 (Conn)
714 (Aldrich, Gurr)

Ethyl eosin may be used instead of Eosin Y ws to counterstain alum hematoxylin in the Hematoxylin and Eosin method. Ensure this compound is identified correctly when "alcohol soluble eosin" is required, as eosin Y ws is, itself, alcohol soluble, and eosinol Y is also known as eosin, spirit soluble.

Compare the structural formulae of some eosin homologues.

 

Reference
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.

Aldrich chemical catalogue, 1992
Aldrich Chemical Company, Milwaukee, WI, USA.

Edward Gurr, (1971)
Synthetic dyes in biology, medicine and chemistry
Academic Press, London, England.

 


 
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Last updated May 2005.