Ethyl p-Chlorophenoxyacetate is primarily used as an intermediate in the synthesis of phenoxy-type herbicides and plant growth regulators. These herbicides play a key role in controlling broadleaf weeds in agricultural crops such as cereals, corn, and rice, with selective action that allows targeted weed management without significant harm to crop plants. The compound is also utilized in the development of other agrochemicals and specialty esters for crop protection formulations. Its stability and reactivity make it suitable for incorporation into larger molecules with enhanced biological activity.