Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of nicotinic receptor ligands and other neuroactive compounds. Its structure, featuring chloro, nitro, and hydroxy groups on the pyridine ring, allows for selective functionalization, making it valuable in creating agrochemicals and bioactive molecules. Commonly employed in cross-coupling reactions and nucleophilic substitutions to build complex heterocyclic systems. Also utilized in research settings for designing kinase inhibitors and antimicrobial agents, including antifungals and antivirals.