Fast Yellow

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
Fast yellow
Fast yellow
Fast yellow G,
Fast yellow extra,
Acetyl yellow
13015
Acid yellow 9
Azo
Acid
18.4%
0.24%
490 (Conn), 381 (Gurr)
Yellow
C13H9N3O6S2Na2
401.342

This dye is not commonly used, but it has been specified in Wallart & Honette's trichrome stain, where it stains collagen yellow, in contrast to red cytoplasm.

 

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.

 


 

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