7-Diethylamino-4-methylcoumarin丨CAS 91-44-1

7-Diethylamino-4-methylcoumarin丨CAS 91-44-1 is a coumarin derivative well known for its strong fluorescent properties. It serves as a fluorescent dye, laser dye, and fluorescence probe in scientific research. Due to its efficient light absorption and emission characteristics, it is a valuable compound in analytical chemistry, biological imaging, and optical applications.

1. Fluorescent Dye in Analytical Chemistry
● Used in fluorescence spectroscopy and fluorometric assays.
● Effective for detecting low concentrations of various analytes due to its high quantum yield.

2. Laser Dye
● Utilized as a gain medium in dye lasers, especially for blue-emitting laser systems.
● Efficient in converting pump light to laser output with high photostability.

3. Fluorescent Probe in Biology
● Acts as a marker for proteins, nucleic acids, or membranes in fluorescence microscopy.
● Can be chemically modified and linked to biomolecules for cell labeling and biological tracking.

4. Indicator in pH or Polarity Studies
● Sensitive to changes in pH, solvent polarity, and microenvironmental properties.
● Used in studies of micelle formation, lipid membranes, and protein conformational changes.

5. Optoelectronic and Photonic Applications
● Plays a role in organic light-emitting diodes (OLEDs) and photodetectors.
● Integrated into materials for solar energy harvesting or light sensors.

6. Educational and Demonstration Uses
● Due to its vivid fluorescence, it is frequently used in laboratory demonstrations of fluorescence principles.

√ Strong Fluorescence
● High quantum yield and bright blue fluorescence under UV (typically around 440–460 nm emission).
√ Photostability
● Exhibits significant resistance to photobleaching, suitable for prolonged fluorescence imaging or laser use.
√ Versatile Derivatization
● The coumarin structure allows chemical modifications, making it adaptable for various labeling or sensor applications.
√ Solubility in Organic Media
● Easily dissolved in organic solvents, making it compatible with polymeric matrices, coatings, or organic solutions.
√ Low Toxicity
● Generally low toxicity at working concentrations in analytical or research settings.

Conclusion
7-Diethylamino-4-methylcoumarin丨CAS 91-44-1 is a highly fluorescent compound that is widely used in analytical chemistry, biological imaging, and laser technology. Its optical brightness, photostability, and flexibility in chemical applications make it a go-to dye in both academic and industrial settings.