Used as a specialty chemical intermediate in the synthesis of pharmaceuticals, particularly for developing compounds with central nervous system (CNS) activity, such as certain antidepressants, stimulants, and analgesics. Its phenethylamine scaffold supports the creation of bioactive derivatives that interact with neurotransmitter systems. Note: Not directly associated with ibuprofen or traditional NSAIDs, but useful in related aryl-substituted analogs. Also employed in the preparation of chiral catalysts and ligands for asymmetric synthesis, enhancing the efficiency and selectivity of organic reactions.