Ethyl isothiocyanate is widely used in the agricultural sector as a fumigant and pesticide to control soil-borne pests and pathogens. It is effective against nematodes, fungi, and weeds, making it a valuable tool in crop protection and soil management. In the pharmaceutical industry, it serves as a key intermediate in the synthesis of various bioactive compounds, including potential anticancer agents and antimicrobial drugs. Additionally, it is utilized in organic synthesis for the preparation of thiourea derivatives and other sulfur-containing compounds. Its role in flavor and fragrance industries includes contributing to the characteristic pungent aroma in certain food products and essential oils. In laboratory settings, it is employed as a reagent in chemical and biochemical analyses to detect or quantify specific substances in samples.