Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. It serves in the preparation of heterocyclic compounds, such as indazoles and pyrazoles, especially in the development of dyes and pigments. Commonly employed in the production of azo dyes through hydrazone intermediates and subsequent coupling reactions. Also utilized in research laboratories for derivatization of carbonyl compounds to form hydrazones in analytical chemistry. Shows application in the development of certain bioactive molecules, including potential antitumor and antimicrobial agents.