Used primarily as a modifying agent for proteins and enzymes in biochemical research. It reacts selectively with amino groups on lysine residues, temporarily altering protein structure and function. This property makes it valuable in studying protein conformation and in designing reversible protein modifications. Also employed in the synthesis of specialty polymers and resins, where it contributes to cross-linking and enhances thermal stability. Its reactivity allows incorporation into functional materials for controlled release systems and in the development of responsive hydrogels.