Difference between revisions of "Ponceau S"
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== Description == | == 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 [ | + | 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 [[protein|proteins]]. It has also been used as a [[silk|silk]] and [[wool|wool]] dye and as a former food colorant for maraschino cherries. |
| − | + | [[[SliderGallery rightalign|ponceau S.jpg~Chemical structure]]] | |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
CI 27195 | CI 27195 | ||
| − | [ | + | ==Risks== |
| − | + | * ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC161471000&productDescription=PONCEAU+S%2C+PURE++++++++++100GR&vendorId=VN00032119&countryCode=US&language=en SDS] | |
| − | == | + | == Physical and Chemical Properties == |
Soluble in water. Maximum absorption wavelength = 520 nm. | Soluble in water. Maximum absorption wavelength = 520 nm. | ||
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| − | == | + | ==Resources and Citations=== |
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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 | + | * 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. | |
| − | * | + | * ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 7750 |
| − | * | + | * Aldrich Chemical Catalog |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 13:13, 27 September 2022
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
Risks
- ThermoFisher: SDS
Physical and Chemical Properties
Soluble in water. Maximum absorption wavelength = 520 nm.
| Composition | C22H16N4O13S4.4Na |
|---|---|
| CAS | 6226-79-5 |
| Molecular Weight | mol. wt. = 764.62 |
Resources and Citations=
- 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.
- The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 7750
- Aldrich Chemical Catalog