Widely used in the synthesis of fluorescent dyes and probes due to its ability to enhance photostability and quantum yield. Commonly employed in bioimaging and labeling of biomolecules such as proteins and nucleic acids. Serves as a key intermediate in the preparation of fluorescent tags based on benzoxadiazole scaffolds, which are valuable in cellular and molecular imaging. Also utilized in the development of sensors for detecting metal ions and reactive oxygen species in environmental and biological systems. Its derivatives find application in agrochemicals and pharmaceuticals as heterocyclic building blocks.