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Ponceau S

Dye

Ponceau S

Class: Azo
Ionisation: Acid

Chemical structure of Ponceau S

Common Name: Ponceau S
Suggested Name: Ponceau S
Other Names:

–

C.I. Number: 27195
C.I. Name: –
Color: Red
Solubility Aqueous: Soluble
Solubility Ethanol: Soluble
Absorption Maximum: 520, 352
Empirical Formula: C22H12N4O13S4Na4
Formula Weight: 760.6

Description

Ponceau S has been recommended as a substitute for acid fuchsin in Van Gieson's method for collagen. It fades less than acid fuchsin, but does not demonstrate fine fibres as well.

References

  1. R. D. Lillie.
    Conn’s Biological Stains
    Williams & Wilkins, Baltimore, MD., U.S.A.
  2. Aldrich chemical catalogue, 1992
    Aldrich Chemical Company, Milwaukee, WI, USA.