This chemical is primarily utilized in the field of analytical chemistry and research, particularly as a labeled compound for isotopic studies. Its deuterated ethyl group (ethyl-d5) makes it valuable for use as an internal standard in mass spectrometry, aiding in the accurate quantification of similar compounds in complex mixtures. It is also employed in the synthesis of agrochemicals and pharmaceuticals, where its pyrimidine core serves as a key intermediate in the development of active ingredients. Additionally, it finds application in metabolic studies to trace and understand the pathways and mechanisms of chemical transformations in biological systems.