2-Methylbenzoic anhydride is primarily used in organic synthesis as a reagent for introducing the 2-methylbenzoyl group into various compounds. It is particularly valuable in the preparation of esters, amides, and other derivatives through acylation reactions. This compound is often employed in the pharmaceutical industry for the synthesis of active pharmaceutical ingredients (APIs) and intermediates. Additionally, it finds application in the production of specialty chemicals, including dyes, pigments, and polymers, where the 2-methylbenzoyl moiety imparts specific properties to the final product. Its role in facilitating efficient and selective chemical transformations makes it a useful tool in both academic research and industrial processes.