Used as a key intermediate in the synthesis of pharmaceuticals and agrochemicals due to its reactive halogen and ethynyl functional groups. The compound serves in cross-coupling reactions, such as Sonogashira and Suzuki couplings, enabling the construction of complex organic molecules. It is particularly valuable in the development of bioactive compounds and functional materials where aryl acetylene scaffolds are required. Its dual reactivity allows selective modifications, making it useful in research and industrial settings for creating specialty chemicals and active ingredients in crop protection agents.