6-Aminonicotinaldehyde hydrochloride is widely used in organic synthesis as a key intermediate for the preparation of various heterocyclic compounds. Its aldehyde and amino functional groups make it a versatile building block in the synthesis of pharmaceuticals, particularly in the development of drugs targeting neurological disorders and infectious diseases. It is also employed in the production of agrochemicals, where it serves as a precursor for compounds with herbicidal or pesticidal properties. Additionally, this chemical finds application in material science, contributing to the synthesis of advanced organic materials with potential uses in electronics or catalysis. Its reactivity and structural features make it valuable in research and industrial processes for creating complex molecules.