Used as a key intermediate in the synthesis of various dyes and pigments, particularly in azo dye production due to its diamine structure enabling coupling reactions. Serves as a building block in pharmaceuticals for developing central nervous system agents and antidepressants. Employed in polymer chemistry as a curing agent for epoxy resins, enhancing thermal and mechanical stability. Also utilized in the preparation of chelating agents and ligands for metal ion coordination in catalysis and environmental remediation. Its bifunctional amine groups allow for cross-linking in specialty chemicals and functional materials.