Used as a fluorescent probe in biochemical and analytical applications due to its strong emission properties. It binds selectively to proteins and macromolecules, making it useful in studying protein-ligand interactions and conformational changes. Commonly employed in assays for detecting enzyme activity, especially in diagnostic kits. Also utilized in corrosion inhibition studies where it acts as a stabilizer in metal treatment processes. Its sulfonate group enhances water solubility, allowing use in aqueous-based systems including biological buffers and imaging techniques.