Used as a key intermediate in the synthesis of pharmaceutical agents, particularly in the development of non-steroidal anti-inflammatory drugs (NSAIDs) and selective COX-2 inhibitors. Its structure supports the construction of complex heterocyclic systems found in bioactive molecules. Commonly employed in medicinal chemistry for scaffold modification to enhance drug potency and metabolic stability. Also utilized in research settings for the preparation of novel benzo[b]thiophene derivatives with potential antitumor and antimicrobial activities.