Ponceau 6R

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 Ponceau 6R Ponceau 6R Crystal scarlet Crystal ponceau 6R Brilliant crystal scarlet 6R 16250 Acid red 44 Azo Acid Readily Moderate 513 (Gurr), 510 (Aldrich) Red C20H12N2O7S2Na2 502.446

Although not commonly used, this dye has been recommended for staining fibrin with the MSB (Martius, Scarlet and Blue) which is a reliable trichrome technique for this material.

 

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.