Chlorpyrifos is intended to be used for killing various kinds of pests including worms & insects. It is suitable to be applied on crops as well as buildings. This pesticide exerts its action by inhibiting activity of acetycholinesterase enzyme. It has molecular formula C9H11Cl3NO3PS with molar mass of 350.57 g/mol. Chlorpyrifos is most commonly applied to cotton, almonds, apples, bananas, and oranges. It appears as colorless crystalline compound and has high purity level with mercaptan-like odor. This is a type of organophosphate pesticide which shows low water solubility.