Used as an intermediate in the synthesis of agrochemicals and pharmaceuticals, particularly in the production of neonicotinoid insecticides. It plays a key role in constructing biologically active molecules due to its reactive functional groups and heterocyclic structure. Commonly employed in reactions where the chlorothiazole moiety acts as a directing or activating group. Also utilized in the development of novel compounds with potential insecticidal or fungicidal activity. Its versatility makes it valuable in medicinal chemistry for building complex molecules with targeted biological effects.