Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of nonsteroidal anti-inflammatory drugs (NSAIDs) and selective COX-2 inhibitors. Its aldehyde functional group allows for easy modification in multi-step organic reactions, making it valuable in constructing heterocyclic compounds with biological activity. Also employed in agrochemical research for designing new active ingredients in crop protection agents due to its aromatic and heterocyclic framework. Commonly utilized in medicinal chemistry for structure-activity relationship (SAR) studies involving pyrazole derivatives.