Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of selective serotonin reuptake inhibitors (SSRIs) and other central nervous system agents. Its structure allows for easy functionalization, making it valuable in building complex bioactive molecules. Also employed in the development of agrochemicals and specialty polymers due to its aromatic and reactive aldehyde group. Commonly utilized in research settings for the preparation of fluorinated analogs in medicinal chemistry.