Used in the synthesis of pharmaceuticals, particularly as an intermediate in the production of non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen and related derivatives. Its chiral aldehyde functionality makes it valuable in asymmetric synthesis, where stereochemistry plays a critical role in drug activity. Also employed in the preparation of fragrances and flavoring agents due to its aromatic character and reactive aldehyde group, which can be transformed into alcohols, acids, or imines for use in perfumery.