Chlorpyrifos (Χλωροπυριφός) Chemical compound Image result for χλωροπυριφός DescriptionChlorpyrifos is an organophosphate pesticide used on crops, animals, and buildings, and in other settings, to kill a number of pests, including insects and worms. It acts on the nervous systems of insects by inhibiting the acetylcholinesterase enzyme. Chlorpyrifos was patented in 1966 by Dow Chemical Company. Wikipedia Formula: C9H11Cl3NO3PS Molar mass: 350.59 g/mol Melting point: 42 °C Density: 1.4 g/cm³ ChemSpider ID: 2629 Classification: Organothiophosphate