Used primarily as a reactive intermediate in the production of oil additives, particularly in the synthesis of polyisobutylene succinimide dispersants for lubricating oils. These dispersants help keep engine deposits suspended in oil, preventing sludge formation and maintaining engine cleanliness. The compound’s anhydride group readily reacts with amines to form imides, making it valuable in creating high-performance additives for motor oils and industrial lubricants. It is also utilized in the development of corrosion inhibitors and emulsifiers in fuel and oil formulations.