This chemical is widely used in the field of bioconjugation and protein modification. It serves as a versatile linker for attaching various molecules, such as peptides, proteins, or antibodies, to solid supports or other biomolecules. Its reactive pyrrole dione group enables efficient coupling with amine-containing compounds, making it valuable in the development of diagnostic assays, targeted drug delivery systems, and biopharmaceutical research. Additionally, its sulfonic acid salt form enhances solubility in aqueous solutions, facilitating its use in biochemical and biomedical applications. The compound is particularly useful in creating stable conjugates for imaging, therapeutic, and diagnostic purposes.