Used as an intermediate in the synthesis of fluorescent dyes and bioactive compounds, particularly in the development of sensors for detecting metal ions and biomolecules. Its electron-withdrawing nitro group enhances reactivity in nucleophilic substitution, making it valuable in constructing heterocyclic pharmaceuticals. Also employed in the preparation of fluorescent labels for proteins and nucleic acids due to its strong photostability and emission properties in the visible range. Additionally, derivatives serve in agrochemicals as building blocks for novel pesticides with improved selectivity.