Maleimide is widely used in the field of bioconjugation, where it serves as a key reagent for attaching proteins, peptides, or other biomolecules to various surfaces or carriers. Its ability to react selectively with thiol groups (-SH) under mild conditions makes it ideal for creating stable covalent bonds, often utilized in the development of antibody-drug conjugates (ADCs) for targeted cancer therapies. In material science, maleimide-functionalized polymers are employed to modify surfaces or create cross-linked networks, enhancing material properties like adhesion, durability, and biocompatibility. Additionally, it plays a role in the synthesis of pharmaceuticals and agrochemicals, where it acts as an intermediate in the production of compounds with specific biological activities. Maleimide is also used in the development of biosensors and diagnostic tools, enabling the precise immobilization of biomolecules for accurate detection and analysis.