This compound is primarily used in peptide synthesis and radiopharmaceutical development. It serves as a versatile building block for creating peptide-based imaging agents and therapeutic drugs. The Fmoc group protects the amino group during solid-phase peptide synthesis, while the DOTA moiety chelates metal ions, making it valuable for radiolabeling applications in positron emission tomography (PET) and other imaging techniques. The t-Bu ester groups provide additional protection for the carboxyl groups, ensuring selective reactivity during complex syntheses. Its application is crucial in designing targeted therapies and diagnostic tools for cancer and other diseases.