Used primarily as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of angiotensin II receptor antagonists like olmesartan medoxomil, which is prescribed for the treatment of hypertension. Its structure enables efficient derivatization to form biologically active compounds targeting cardiovascular diseases. It is also employed in research settings for developing new heterocyclic compounds with potential therapeutic activity. Due to its amine functionality and fused ring system, it serves as a building block in medicinal chemistry for constructing complex molecules with improved pharmacokinetic properties.