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Alizarin Red S (also known as C.I. Mordant Red 3, Alizarin Carmine, and C.I 58005.) is a water-soluble sodium salt of Alizarin sulfonic acid with a chemical formula of . Alizarin Red S was discovered by Graebe and
Alizarin Red S is used in histology and
Libermann Libermann is a surname. Notable people with the surname include:
*Alexander Libermann (1896–1978), American classical pianist
*Francis Libermann (1802–1852), French Roman Catholic priest
*Paulette Libermann (1919-2007), French mathematician
Sc ...
in 1871. In the field of histology alizarin Red S is used to stain
A stain is a discoloration that can be clearly distinguished from the surface, material, or medium it is found upon. They are caused by the chemical or physical interaction of two dissimilar materials. Accidental staining may make materials app ...
calcium deposits in tissues, and in geology to stain and differentiate carbonate minerals.
Uses
Alizarin Red S is used in histology and histopathology
Histopathology (compound of three Greek words: ''histos'' "tissue", πάθος ''pathos'' "suffering", and -λογία '' -logia'' "study of") refers to the microscopic examination of tissue in order to study the manifestations of disease. Spe ...
to stain, or locate calcium deposits in tissues. In the presence of calcium, Alizarin Red S, binds to the calcium to form a Lake pigment that is orange to red in color. Whole specimens can be stained with Alizarin Red S to show the distribution of bone, especially in developing embryos. In living corals alizarin Red S has been used to mark daily growth layers.
In geology, Alizarin Red S is used on Thin sections, and polished surfaces to help identify carbonate minerals which stain at different rates.
See also
* Aniline *1,2,4-Trihydroxyanthraquinone
1,2,4-Trihydroxyanthraquinone, commonly called purpurin, is an anthraquinone. It is a naturally occurring red/yellow dye. It is formally derived from 9,10-anthraquinone by replacement of three hydrogen atoms by hydroxyl (OH) groups.
Purpurin is ...
or purpurin, another red dye that occurs in madder root
* Hydroxyanthraquinone A hydroxyanthraquinone (formula: C14H9O2(OH)) is any of several organic compounds that can be viewed as derivatives of an anthraquinone through replacement of one hydrogen atom (H) by a hydroxyl group (-OH).
The IUPAC nomenclature recommends hydrox ...
* Dihydroxyanthraquinone A dihydroxyanthraquinone is any of several isomeric organic compounds with formula , formally derived from 9,10-anthraquinone by replacing two hydrogen atoms by hydroxyl groups. Dihyroxyantraquinones have been studied since the early 1900s, and inc ...
* List of dyes
This is a list of dyes with Colour Index International generic names and numbers and CAS Registry Number, CAS Registry numbers.
Note
* Synonyms should be treated with caution because they are often used inconsistently, see Talk:List_of_dyes, dis ...
* List of colors (compact)
The following list shows a compact version of the colors in the list of colors A–F, G–M, and N–Z articles. The list shows the color swatch and its name. Hovering over the color box shows the HSV, RGB, and #hex values for the color in ...
References
{{Authority control Anthraquinone dyes Catechols Chelating agents Dihydroxyanthraquinones Organic pigments Natural dyes Staining dyes Histology Histotechnology Staining Histochemistry