Used as a key intermediate in the synthesis of pyrazole-based insecticides, particularly in the production of fipronil. Its structure enables effective disruption of insect gamma-aminobutyric acid (GABA)-gated chloride channels, leading to neurotoxicity in pests. Widely applied in agricultural and veterinary formulations to control a broad spectrum of insects including beetles, fleas, ticks, and termites. Also utilized in research for developing new crop protection agents due to its high reactivity and selectivity in chemical synthesis.