Common Name: Ethyl eosin
Suggested Name: Ethyl eosin
Other Names:
Alcohol soluble eosin
Spirit soluble eosin
C.I. Number: 45386
C.I. Name: Solvent red 45
Color: Red
Solubility Aqueous: 0.03%
Solubility Ethanol: 0.03%
Absorption Maximum: 524-527 (Conn) 532 (Aldrich, Gurr)
Empirical Formula: C22H11O5Br4Na
Formula Weight: 698 (Conn)
714 (Aldrich, Gurr)
Description
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 formula of some eosin homologs.
References
- 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.
