Xanthene is widely used in the field of dyes and pigments due to its ability to form brightly colored compounds. It serves as a core structure in the synthesis of fluorescent dyes, which are utilized in biological staining and microscopy to highlight specific structures in cells and tissues. Additionally, xanthene derivatives are employed in the production of laser dyes, which are essential in various scientific and medical applications, including spectroscopy and laser surgery. Its photostability and fluorescence properties make it valuable in the development of sensors and markers for chemical and biological detection. Xanthene-based compounds are also used in dye-sensitized solar cells for photovoltaic applications. Furthermore, xanthene-based compounds are used in the manufacturing of inks and cosmetics, where vibrant and long-lasting colors are desired.