2'-Amino-2'-deoxyinosine is primarily used in biochemical research, particularly in the study of nucleic acids and their interactions. It serves as a modified nucleoside, aiding in the investigation of DNA and RNA structures, as well as enzyme mechanisms. This compound is also valuable in the development of antiviral and anticancer drugs, as it can be incorporated into nucleic acid analogs to inhibit viral replication or disrupt cancer cell growth. Additionally, it plays a role in understanding mutagenesis and DNA repair processes, providing insights into genetic stability and disease mechanisms. Its unique structure makes it a useful tool for probing the specificity and function of nucleic acid-modifying enzymes.