Naphthol Yellow S

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
 
Naphthol yellow S
Naphthol yellow S
Sulfur yellow S,
Acid yellow S
10316
Acid yellow 1
Nitro
Acid
8%
Slightly
428, 392 (Conn)
427, 390 (Gurr)
Yellow
C10H4N2O8SNa2
358.2 (Aldrich, Merck),
412.254 (Conn)

This dye has been recommended by Shoobridge for use as a staining "primer" in his polychrome method. Its free acid is called flavianic acid.

 

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.
The Merck Index, 12 ed.,
Merck & Co., NJ, USA

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

 


 

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