Rose Bengal

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
Rose bengal
Rose bengal

45440
Acid red 94
Fluorone
Acid
36%
7.5%
544-548 (Conn)
548-549 (Aldrich)
544 (Gurr)
Red
C20H2O5I4Cl4Na2
1017.7

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 formulae of some eosin homologues.

 

Reference
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, (1996)
The Merck Index, Ed. 12
Merck & Co., Inc., Whitehouse Station, NJ, USA

 


 

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