Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of phosphodiesterase 4 (PDE4) inhibitors which are targeted for inflammatory diseases such as asthma, chronic obstructive pulmonary disease (COPD), and psoriasis. Its structure allows for effective binding and modulation of enzyme activity, making it valuable in medicinal chemistry. Also employed in the preparation of fragrances and flavoring agents due to its aromatic aldehyde functionality and unique ether linkage.