Difference between revisions of "Ponceau S"

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° R.Wolbers, G.Landry, "The Use of Direct Reactive Fluorescent Dyes for the Characterization of Binding Media in Cross Sectional Examinations" in Preprints of the AIC Meeting in Vancouver, 1987. ° M.Johnson, E.Packard, "Methods Used for Identification of Binding Media in Italian paintings of the 15th and 16th Centuries" ''Studies in Conservation'', 16:145-164, 1971.
 
° R.Wolbers, G.Landry, "The Use of Direct Reactive Fluorescent Dyes for the Characterization of Binding Media in Cross Sectional Examinations" in Preprints of the AIC Meeting in Vancouver, 1987. ° M.Johnson, E.Packard, "Methods Used for Identification of Binding Media in Italian paintings of the 15th and 16th Centuries" ''Studies in Conservation'', 16:145-164, 1971.
  
== Authority ==
+
== Sources Checked for Data in Record ==
  
 
* ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996  Comment: entry 7750
 
* ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996  Comment: entry 7750

Revision as of 15:05, 1 May 2016

Description

A cherry red biological stain. Ponceau S is a diazo type dyes composed of the tetra sodium salt of 2,7-naphthalenedisulfonic acid. It forms a weakly acidic solution in water that can stain proteins. It has also been used as a silk and wool dye and as a former food colorant for maraschino cherries.

Synonyms and Related Terms

CI 27195

Chemical structure

Ponceau S.jpg


Other Properties

Soluble in water. Maximum absorption wavelength = 520 nm.

Composition C22H16N4O13S4.4Na
CAS 6226-79-5
Molecular Weight mol. wt. = 764.62

Hazards and Safety

Mallinckrodt Baker: MSDS

Additional Information

° R.Wolbers, G.Landry, "The Use of Direct Reactive Fluorescent Dyes for the Characterization of Binding Media in Cross Sectional Examinations" in Preprints of the AIC Meeting in Vancouver, 1987. ° M.Johnson, E.Packard, "Methods Used for Identification of Binding Media in Italian paintings of the 15th and 16th Centuries" Studies in Conservation, 16:145-164, 1971.

Sources Checked for Data in Record

  • The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 7750
  • Aldrich Chemical Catalog

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