Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive compounds. It serves as a key building block in the development of anti-inflammatory and analgesic agents due to its structural similarity to known pharmacophores. Its reactivity allows for easy modification at the pyrazolone ring, enabling the creation of diverse derivatives for drug discovery. Also employed in the synthesis of heterocyclic compounds with potential antimicrobial and anticancer activities. Additionally, it finds use in research settings for studying tautomerism and molecular interactions in solid-state chemistry.