Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of nicotinic acid derivatives with biological activity. Its reactive chloromethyl group allows for easy alkylation or coupling reactions, making it valuable in creating active pharmaceutical ingredients (APIs) for drugs targeting central nervous system disorders and inflammation. Commonly employed in the development of receptor agonists and antagonists due to the pyridine ring’s affinity for biological targets. Also utilized in agrochemical synthesis for building complex molecules in crop protection agents. Its versatility in organic synthesis supports applications in medicinal chemistry research and development.