Used in organic synthesis as an intermediate for pharmaceuticals and bioactive compounds. The iodine substituent allows for cross-coupling reactions, such as Suzuki or Heck reactions, enabling the construction of complex molecules. Commonly employed in the development of nicotinic acid derivatives with potential medicinal properties, including enzyme inhibitors or receptor modulators. Also utilized in the preparation of radiolabeled compounds for imaging and tracer studies due to the presence of iodine. Its carboxylic acid group facilitates conjugation or salt formation, enhancing solubility or stability in formulations.