Alizarin Red S
| IUPAC Name: | Sodium 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate |
| Other Names: | Mordant Red 3, C.I. 58005 |
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Alizarin Red S is a synthetic dye used primarily in biology and histology for staining purposes. It is a sodium salt form of alizarin, with the chemical formula C14H7NaO7S. This compound is known for its application in the staining of calcium deposits in tissues, making it a valuable tool in the study of various biological processes and diseases, such as osteoporosis and other conditions affecting bone density.
History[edit | edit source]
The use of alizarin and its derivatives dates back to ancient times, with alizarin itself being one of the oldest dyes used for textile dyeing. Alizarin Red S, however, was synthesized in the late 19th century as part of the burgeoning field of synthetic dyes. Its application in biological staining was realized shortly thereafter, providing a more consistent and reliable means of studying tissue composition and pathology.
Applications[edit | edit source]
Alizarin Red S staining is particularly useful in the field of histology, where it is used to identify calcium deposits in tissue sections. This application is crucial in the study of bone health and diseases affecting bone tissue. In addition to its use in histology, Alizarin Red S can also be used in the staining of cell cultures to observe calcium deposition at the cellular level.
Procedure[edit | edit source]
The staining procedure with Alizarin Red S involves preparing a solution of the dye, typically in a buffered aqueous solution, and applying it to the tissue or cell samples. The samples are then observed under a microscope, where calcium deposits will appear bright red, contrasting with the surrounding tissue.
Safety and Handling[edit | edit source]
While Alizarin Red S is not considered highly toxic, proper safety precautions should be taken when handling the dye and preparing solutions. Gloves and eye protection are recommended to avoid skin and eye contact. Disposal of waste materials should be conducted in accordance with local regulations to minimize environmental impact.
See Also[edit | edit source]
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