Used in the synthesis of pharmaceutical intermediates, particularly in the development of vasodilator drugs. It serves as a key building block in the production of verapamil, a calcium channel blocker used to treat hypertension, angina, and certain arrhythmias. Its aromatic structure with methoxy and aldehyde functional groups allows for selective chemical modifications, making it valuable in fine chemical and medicinal chemistry applications. Also utilized in fragrance formulations due to its stable aromatic characteristics.