Trypan Blue

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 Trypan blue Trypan blue Niagara blue 3B 23850 Direct blue 14 Azo Acid Moderate Slight 607 (Conn), 586 (Gurr) Blue C34H23N6O14S4Na4 960.8

Aldrich lists trypan blue as a suspect carcinogen. It is a vital dye, and is often used in that fashion. It can be used to demonstrate amyloid in a manner similar to that of congo red.

 

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.

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