Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) with biological activity. It serves as a building block in the preparation of kinase inhibitors and other heterocyclic compounds involved in medicinal chemistry. Its aldehyde functional group allows for easy derivatization, enabling the formation of imines, oximes, or alcohols through condensation or reduction reactions. This flexibility makes it valuable in drug discovery and optimization processes. Additionally, it finds use in agrochemical research for designing novel pesticides and herbicides due to the bioactive nature of pyrazole derivatives.