Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of nicotinamide adenine dinucleotide (NAD) analogs and enzyme inhibitors. Its sulfonic acid group enhances water solubility, making it valuable in aqueous-phase reactions and in designing biologically active molecules with improved pharmacokinetics. Also employed in agrochemical formulations as a building block for herbicides and plant growth regulators. Its pyridine core allows for metal coordination, enabling use in catalysis and material science applications such as ligand design for transition metal catalysts.