Used in the synthesis of fluorescent dyes and probes due to its ability to enhance water solubility and photostability. The sulfonic acid group improves solubility in aqueous media, making it suitable for bioimaging applications. Commonly employed in the development of sensors for detecting metal ions and biomolecules. Also serves as an intermediate in pharmaceuticals and agrochemicals where fluorinated aromatic compounds are needed for improved metabolic stability. Its structure supports conjugation with amines and alcohols, enabling use in labeling biomolecules for diagnostic assays.