Used primarily in organic synthesis, (-)-O-Acetyl-L-malic Anhydride serves as a key chiral intermediate in the production of various pharmaceuticals and fine chemicals. Its role is crucial in the formation of esters and other derivatives, which are often utilized in drug development. Additionally, it finds application in the modification of natural products, enhancing their properties for specific uses. In research, it is employed to study reaction mechanisms and to develop new synthetic pathways. Its versatility makes it valuable in both industrial and academic settings.