Used primarily in pharmaceutical research and development, this compound serves as a deuterated analog of valganciclovir, aiding in the study of drug metabolism and pharmacokinetics. Its deuterium labeling allows for precise tracking and analysis in mass spectrometry, facilitating the identification of metabolites and understanding of drug behavior in biological systems. Additionally, it is employed in the synthesis of antiviral agents, particularly for the treatment of cytomegalovirus (CMV) infections, ensuring enhanced stability and efficacy in therapeutic formulations.