(2S,3S)-2,3-Bis((2-methylbenzoyl)oxy)succinic acid is a chiral derivative of tartaric acid widely used as a resolving agent in organic synthesis for the separation of enantiomers. It forms diastereomeric salts with racemic mixtures of amines, amino acids, or other bases, enabling the isolation of enantiomerically pure compounds via selective crystallization. This application is essential in pharmaceutical development to produce single enantiomers that exhibit the desired therapeutic activity while reducing potential side effects from the inactive isomer. Furthermore, it serves as a chiral auxiliary in asymmetric transformations and can be employed in the synthesis of ligands or catalysts for enantioselective reactions in research and industrial settings. Its stereochemical properties also find utility in advanced materials, such as chiral polymers.