Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of thyroid hormone analogs and anti-cancer agents. Its structure allows for efficient iodination and coupling reactions, making it valuable in radiolabeling studies and positron emission tomography (PET) tracer development. Commonly employed in organic synthesis to introduce methoxy and ester functionalities in aromatic systems, especially in the preparation of bioactive molecules and functionalized benzoic acid derivatives.