Used as a crosslinking agent in polymer chemistry, particularly in the development of epoxy resins and polyurethanes, enhancing thermal stability and mechanical strength. Also serves as a building block in synthesizing biologically active compounds, including enzyme inhibitors and antimicrobial agents. Its multiple amine groups make it effective in chelating metal ions, useful in catalysis and wastewater treatment. Additionally, employed in surface modification of nanomaterials and dendrimer synthesis due to its polyamine structure. In molecular biology research, it is used for labeling proteins or nucleic acids for detection or separation, as the multiple amine groups can react with fluorescent agents or other labels. Commonly applied in analytical techniques such as Western blot or fluorescence microscopy, and in developing nanomaterials or drug delivery systems that require strong binding to biological molecules.