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• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Benzopyrans Dibenzopyrans
• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Benzopyrans 1-benzopyrans Dibenzopyrans

Introduction to Fluorescein Sodium (CAS No: 518-47-8)

Fluorescein Sodium, with the chemical name disodium salt of 3H-benzo[de]isoquinoline-3,4-dione, is a widely recognized fluorescent dye that has found extensive applications in various scientific and medical fields. Its unique photophysical properties, including high quantum yield and strong fluorescence, make it an invaluable tool for imaging, diagnostics, and research. This compound, identified by the CAS number 518-47-8, is particularly noted for its stability and solubility in aqueous solutions, which enhances its utility in biological systems.

The chemical structure of Fluorescein Sodium consists of a benzo[de]isoquinoline core, which is a fused ring system that contributes to its remarkable fluorescence characteristics. The sodium salt form increases its solubility in water, making it highly suitable for intravenous administration and other biomedical applications. The compound's ability to emit light in the visible spectrum, particularly at a wavelength of approximately 520 nm when excited at 494 nm, makes it an ideal candidate for fluorescence microscopy and flow cytometry.

In recent years, Fluorescein Sodium has been extensively studied for its potential in bioimaging and cellular tracking. Researchers have leveraged its bright fluorescence to label various biological molecules and structures, enabling high-resolution visualization of cellular processes. For instance, studies have demonstrated its use in tracking the movement of proteins within cells, assessing the integrity of blood vessels, and monitoring neural activity. The compound's compatibility with live cells and tissues has made it a preferred choice for long-term imaging studies.

The application of Fluorescein Sodium extends beyond basic research into therapeutic applications. In clinical settings, it is commonly used as a contrast agent in ophthalmology for diagnosing retinal diseases. Its ability to highlight blood vessels and other retinal structures under fluorescence illumination has significantly improved the accuracy of diagnosing conditions such as diabetic retinopathy and macular degeneration. Additionally, Fluorescein Sodium has been employed in angiography to assess blood flow and vascular health.

Advances in nanotechnology have further expanded the utility of Fluorescein Sodium. Researchers have developed fluorescent nanoparticles conjugated with this dye for targeted drug delivery systems. These nanoparticles can be engineered to release therapeutic agents at specific sites within the body, guided by the fluorescence emitted by Fluorescein Sodium. This approach has shown promise in treating various diseases, including cancer, by enabling precise targeting and reducing side effects associated with conventional treatments.

The synthesis of Fluorescein Sodium (CAS No: 518-47-8) involves a series of organic reactions that typically begin with the condensation of resorcinol and phthalic anhydride to form fluorescein. Subsequent sodium hydrolysis converts fluorescein into its sodium salt form. The purity and quality of the final product are critical for its intended applications, particularly in biomedical research where impurities can interfere with experimental results. High-purity grades of Fluorescein Sodium are available from reputable chemical suppliers to ensure reliable performance.

The environmental impact of using Fluorescein Sodium has also been a subject of interest. While it is generally considered safe for biological applications when used appropriately, researchers are exploring methods to minimize its environmental footprint. For example, efforts are being made to develop biodegradable formulations that can break down into non-toxic products after their use. Such innovations aim to reduce waste while maintaining the efficacy of this valuable fluorescent dye.

In conclusion, Fluorescein Sodium, identified by CAS No 518-47-8, is a versatile fluorescent dye with significant contributions across multiple scientific disciplines. Its unique properties make it indispensable for bioimaging, diagnostics, and therapeutic applications. As research continues to uncover new uses for this compound, its importance in advancing medical science is likely to grow even further. The ongoing development of innovative formulations and applications ensures that Fluorescein Sodium will remain at the forefront of scientific discovery for years to come.

• 3301-79-9(6-FAM)
• 3326-34-9(5-Aminofluorescein)
• 51649-83-3(6-Aminofluorescein)
• 72088-94-9(5(6)-Carboxyfluorescein)
• 124387-19-5(5(6)-CFDA)
• 3012-71-3(6-FITC)
• 2321-07-5(Fluorescein)
• 2103-64-2(Gallein)
• 76823-03-5(5-FAM)
• 596-09-8(Fluorescein diacetate)