Nicotinic hydrazide is primarily used in the field of medicinal chemistry as a precursor for the synthesis of various pharmacologically active compounds. It serves as a key intermediate in the production of drugs with anti-tuberculosis properties, particularly in the development of isoniazid derivatives, which are effective against Mycobacterium tuberculosis. Additionally, it is utilized in the creation of hydrazone-based compounds that exhibit antimicrobial, antifungal, and anticancer activities. In research, nicotinic hydrazide is also employed to study its coordination chemistry with metal ions, leading to the development of metal complexes with potential applications in catalysis and material science. Its role in organic synthesis further extends to the preparation of heterocyclic compounds, which are valuable in drug discovery and development.