Fluorescein O-methacrylate is widely used in the development of fluorescent probes and sensors due to its strong fluorescence properties. It is incorporated into polymers and hydrogels to create materials that can be used for bioimaging and tracking in biological systems. This compound is also utilized in the fabrication of optical devices, such as waveguides and light-emitting diodes, where its fluorescence enhances performance. Additionally, it serves as a labeling agent in biochemical assays, enabling the visualization and detection of specific molecules or cellular components. Its methacrylate group allows for easy polymerization, making it suitable for creating fluorescent coatings and films in various industrial applications.