Used primarily in the production of nylon 6,6, a durable synthetic polymer widely applied in textiles, automotive parts, and industrial materials. It serves as a key monomer that reacts with hexamethylenediamine to form the polyamide structure. Also employed as a plasticizer to improve flexibility in polymers and resins. Found in food products as a flavoring agent due to its mild acidic taste. Utilized in the manufacture of polyurethane foams, contributing to cushioning in furniture and mattresses. Acts as a gelling agent in some pharmaceutical and cosmetic formulations. Used in controlled release of drugs due to its gradual dissolution properties. Employed in the electronics industry for etching and cleaning processes.