Used primarily as an intermediate in the synthesis of chlorpyrifos, a widely used organophosphate insecticide. It plays a key role in agricultural pest control, targeting insects in crops such as corn, soybeans, and fruits. Due to its reactivity, it is also employed in the preparation of other pyridine-based agrochemicals and pharmaceuticals. Its chloromethyl group allows for easy functionalization, making it valuable in organic synthesis for building more complex molecules. Handling requires caution due to its toxicity and potential environmental impact.