6-Hydrazinonicotinic acid (Cat No.: M117788) is a nitrogen-rich heterocyclic compound derived from nicotinic acid, featuring a hydrazino group (-NHNH₂) at the 6-position of the pyridine ring. It serves as a valuable intermediate in organic synthesis, particularly in the development of pharmaceuticals, agrochemicals, and chelating agents. The compound’s carboxylic acid and hydrazine functionalities allow it to participate in diverse reactions, including condensations, cyclizations, and metal coordination, making it useful for constructing bioactive heterocycles and functional ligands in medicinal and coordination chemistry.