Sudan III

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
Sudan III
Sudan III
Sudan red BK
26100
Solvent red 23
Azo
Lysochrome
Insoluble
0.15%
508-510 (Conn)
507, 354 (Aldrich)
503 (Gurr)
Red
C22H16N4O
352.4

Sudan III is a lysochrome (fat soluble dye) predominantly used for demonstrating triglycerides in frozen sections, but which may also stain some protein bound lipids in paraffin sections. It is less popular than oil red O as it has a more orange shade.

Compare this dye to the other common lysochromes sudan IV, oil red O and sudan black B.

 

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.

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

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

 


 

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