Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of compounds with biological activity such as antitumor and antimicrobial agents. Its reactive isothiocyanate group enables conjugation with amines or thiols, making it valuable in the preparation of bioactive molecules and prodrugs. Commonly employed in organic synthesis to introduce functionalized ethyl ester moieties into heterocyclic systems. Also utilized in agrochemical research for designing novel pesticides and herbicides due to its ability to modify molecular structure and enhance bioavailability.