Ethyl dichlorophosphate is primarily used as a key intermediate in the synthesis of organophosphorus compounds, which are essential in the production of flame retardants, plasticizers, and pesticides. Its reactive nature allows it to act as a phosphorylating agent, making it valuable in the modification of polymers and resins to enhance their fire-resistant properties. Additionally, it finds application in the pharmaceutical industry for the preparation of phosphate esters, which are crucial in drug development and the creation of bioactive molecules. In agrochemicals, it is utilized to produce insecticides and herbicides that target specific pests and weeds effectively. Its role in these industries highlights its importance in advancing materials science and chemical manufacturing.