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.

 


 

Translate in
Google Translate
Instructions