Used as a key building block in the synthesis of functional organic materials, particularly in the development of selenium-containing polymers and conjugated systems for electronic applications. Its dual carboxylic acid groups allow for easy incorporation into metal–organic frameworks (MOFs) or covalent organic frameworks (COFs), where the selenium moiety can enhance charge transport or provide redox-active sites. Also explored in supramolecular chemistry due to the unique chalcogen bonding ability of selenium, enabling controlled self-assembly. Additionally, serves as a precursor in the preparation of redox-responsive biomaterials and catalysts, leveraging the reversible Se–Se bond that can undergo dynamic cleavage and reformation under mild conditions.