Pyronin B
| 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 |
Pyronin B Pyronin B – 45010 – Pyronin Basic Very Readily 550 (Gurr) 553 (Aldrich) 555 (Conn) Red C21H27N2OCl 359 (Conn) 1042.3 (Aldrich) |
The formula on the left is from Conn. The one on the right is from Green, and illustrates the suggestion that two molecules of pyronin B are linked through ferric chloride into a larger molecule due to oxidation with ferric chloride during manufacture. This explains the difference in formula weights.
Pyronin B is sometimes substituted for pyronin Y in the Unna-Pappenheim stain for nucleic acids, but is not generally considered to be as effective for that purpose.
Compare the formula with other pyronins.
Reference
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.
Susan Budavari, Editor, (1996)
The Merck Index, Ed. 12
Merck & Co., Inc., Whitehouse Station, NJ, USA
Green, F (1990)
The Sigma-Aldrich handbook of stains, dyes and indicators
Aldrich Chemical Company, Milwaukee, Wisconsin, USA
Edward Gurr, (1971)
Synthetic dyes in biology, medicine and chemistry
Academic Press, London, England.
