Used as an important intermediate in the synthesis of pyrethroid insecticides, particularly in the production of fenvalerate and related compounds. Its structure allows for the formation of ester linkages that are critical to the biological activity of these pesticides. Widely applied in agricultural formulations to control a broad spectrum of insect pests in crops such as cotton, vegetables, and fruits. Also employed in the development of chiral pesticides due to its ability to form stereoisomers with enhanced efficacy and environmental safety. Additionally, it serves as a building block in some pharmaceutical and agrochemical research due to its aromatic and nitrile functionalities.