Pomalidomide 4'-PEG3-azide is primarily utilized in the field of targeted drug delivery and bioconjugation. Its structure, featuring a pomalidomide moiety linked to a PEG3-azide group, makes it suitable for attaching to biomolecules or nanoparticles via click chemistry. This enables precise delivery of pomalidomide, a potent immunomodulatory agent, to specific cells or tissues, enhancing therapeutic efficacy while minimizing off-target effects. It is particularly valuable in cancer research, where it can be used to develop antibody-drug conjugates (ADCs) or targeted therapies for conditions like multiple myeloma. Additionally, its PEG spacer improves solubility and stability, making it a versatile tool in drug development and biomedical studies.