(Z)-Methyl jasmonate (MeJA) is a cyclopentanone derivative, specifically the methyl ester of jasmonic acid. It is a key plant hormone involved in signaling pathways that regulate plant defense responses against biotic and abiotic stresses, as well as developmental processes such as senescence and fruit ripening. Its primary industrial applications are in the fragrance and flavor industries. Due to its intense, floral, jasmine-like aroma, it is widely used as a high-value fragrance ingredient in perfumes, cosmetics, and personal care products. It is also employed as a flavoring agent in certain food and beverage formulations. Beyond its sensory properties, MeJA is extensively used in agricultural research and plant cell culture to elicit the production of secondary metabolites and study plant stress physiology. As a signaling molecule, it is not typically used as a conventional pesticide or plant growth regulator in large-scale agriculture but remains a crucial tool in scientific research and niche applications in specialty agriculture and the production of plant-derived compounds.