Ethoxyacetyl chloride is primarily used as a key intermediate in organic synthesis. It is commonly employed in the production of pharmaceuticals, where it acts as a building block for the synthesis of various active compounds. Additionally, it is utilized in the manufacture of agrochemicals, contributing to the development of herbicides and pesticides. Its reactivity with alcohols and amines makes it valuable in creating esters and amides, which are essential in polymer and resin production. In research, it serves as a reagent for introducing ethoxyacetyl groups into molecules, enabling the study of new chemical reactions and pathways.