Chemical properties and composition
- Molecular Formula:
C14H7NaO7Scap C sub 14 cap H sub 7 cap N a cap O sub 7 cap S
๐ถ14๐ป7๐๐๐7๐
- Molar Mass:
360.28 g/mol360.28 g/mol
360.28 g/mol
- Type: An organic sodium salt, organosulfonate salt, and anthraquinone dye
- Derivation: A water-soluble derivative of alizarin, which is 1,2-dihydroxyanthraquinoneย
Uses
- Histological Staining: Used to stain calcium deposits in biological samples, such as bone and teeth. It forms a complex with calcium ions, which appears red under a microscope.ย
- Textile Industry: Used as a dye for wool and nylon, although it can be toxic.ย
- Scientific Research: Employed to assess osteogenesis (bone formation) in cell culture experiments.ย
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Chemical structure of alizarin red S. | Download Scientific Diagram
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Alizarin red – Sigma-AldrichSCM121. Defined Xeno-Free osteogenesis differentiation medium that is specially formulated to readily differentiate human mesenchy…
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Alizarin Red S Stain (2%) (ARed) – ScienCellAlizarin Red S is an anthraquinone dye used to stain for calcium deposits, which are indicators of mature osteocytes. The dye form…ScienCell Research Laboratories
Other facts
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Toxicity:
Alizarin Red S is considered toxic and can be a hazard to aquatic ecosystems.ย
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Natural vs. Synthetic:
While alizarin was historically derived from plants, it became the first natural dye to be produced synthetically in 1869. Alizarin Red S is its synthetic derivative.ย







