9-(2-Hydroxyethyl)adenine is primarily utilized in biochemical research and pharmaceutical development. It serves as a key intermediate in the synthesis of nucleoside analogs, which are crucial for developing antiviral and anticancer drugs. Its structure allows for modifications that enhance the efficacy and selectivity of these therapeutic agents. Additionally, it is employed in studies exploring enzyme mechanisms and nucleotide metabolism, providing insights into cellular processes and potential therapeutic targets. Its applications also extend to the development of prodrugs, where it helps improve the bioavailability and stability of active pharmaceutical ingredients.