Sirius Red 4B
| 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 |
Sirius red 4B Sirius red 4B Chlorantine fast red 5B 28160 Direct red 81 Azo Acid Moderate Slight 508 (Aldrich), 502 (Gurr) Red C29H19N5O8S2Na2 675.62 |
Sirius red 4B has been recommended as the plasma stain in some trichrome staining methods, or as a substitute for acid fuchsin in the van Gieson.
It is sometimes confused with the similarly named dye, sirius red F3B, which may be used for demonstrating amyloid. Sirius red 4B is not used for that purpose and is not a substitute for 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.
