Metanil 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 Metanil yellow Metanil yellow Tropaeolin G 13065 Acid yellow 36 Azo Acid 5.4% 1.4% 536 (Conn), 435 (Gurr), 414 (Aldrich) Yellow C18H14N3O3SNa 375.391

Metanil yellow has been used in some trichrome methods, including one by Masson, to stain collagen yellow in contrast to the red plasma stain. It has been used in solution with other small molecular weight, yellow, acid dyes to increase the intensity of staining.

 

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.