Used as an intermediate in the synthesis of certain neonicotinoid insecticides, particularly in the production of thiamethoxam and related compounds. It plays a key role in forming the active ingredient by contributing the ethylthio group during chemical reactions. This compound is primarily utilized in agrochemical manufacturing for developing systemic insect control agents effective against sucking and chewing pests in crops such as cotton, cereals, and vegetables. Due to its reactivity, it is handled under controlled conditions in industrial settings.