Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of nicotinic acid derivatives with biological activity. It serves in the preparation of agrochemicals and bioactive molecules due to the presence of reactive functional groups—the aldehyde and ester—which allow for further chemical modifications. The chloro and formyl groups enable selective reactions such as cross-coupling, reduction, or condensation, making it valuable in building complex heterocyclic systems. Commonly employed in research settings for designing compounds with potential antiviral, antibacterial, or anti-inflammatory properties.