Used primarily in biochemical research, this compound is employed as a reagent for modifying proteins and peptides. It aids in the introduction of thiol groups into molecules, which is crucial for studying protein structure and function. Additionally, it is utilized in the preparation of affinity chromatography media, helping in the purification of specific biomolecules. Its role in cross-linking reactions also makes it valuable in the development of bioconjugates for diagnostic and therapeutic applications.