Used primarily in targeted drug delivery systems, this compound enhances the solubility and bioavailability of pomalidomide, a drug known for its efficacy in treating multiple myeloma. The amino-PEG5 linker improves the drug's ability to reach specific cells, reducing off-target effects and minimizing potential side effects. It is also employed in bioconjugation strategies, where it facilitates the attachment of pomalidomide to antibodies, peptides, or other targeting moieties, enabling precise delivery to cancer cells. Additionally, its water-soluble PEG chain aids in improving the pharmacokinetic profile of the drug, making it more effective in therapeutic applications.