6-Ethylpyrimidine-2,4(1H,3H)-dione is primarily utilized in the field of organic synthesis, where it serves as a key intermediate in the production of various pharmaceutical compounds. Its structure is particularly valuable in the development of nucleoside analogs, which are crucial in antiviral and anticancer therapies. The compound is also employed in research settings for studying enzyme interactions and metabolic pathways, providing insights into biochemical processes. Additionally, it finds application in the synthesis of agrochemicals, contributing to the development of pesticides and herbicides that enhance crop protection and yield.