Common Name: Rose bengal
Suggested Name: Rose bengal
Other Names:
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C.I. Number: 45440
C.I. Name: Acid red 94
Color: Red
Solubility Aqueous: 36%
Solubility Ethanol: 36%
Absorption Maximum: 544-548 (Conn) 548-549 (Aldrich) 544 (Gurr)
Empirical Formula: C20H2O5I4Cl4Na2
Formula Weight: 1017.7
Description
Rose bengal has been used to replace Eosin Y ws in the H&E stain for photomicrography as early colour film recorded eosin Y poorly. It is now rarely used.
Compare the structural formula of some eosin homologues.
References
- R. D. Lillie.
Conn’s Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A. - Edward Gurr, 1971
Synthetic dyes in biology, medicine and chemistry
Academic Press, London, England. - Aldrich chemical catalogue, 1992
Aldrich Chemical Company, Milwaukee, WI, USA. - Susan Budavari, Editor,
The Merck Index, Ed. 12
Merck & Co., Inc., Whitehouse Station, NJ, USA
