m-PEG11-OH is widely used in the pharmaceutical and biotechnology industries as a key component in drug delivery systems. Its hydrophilic polyethylene glycol (PEG) chain enhances the solubility and stability of therapeutic compounds, making it valuable for improving the pharmacokinetics of drugs. It is often employed in the conjugation of proteins, peptides, and small molecules to prolong their circulation time in the body and reduce immunogenicity. Additionally, m-PEG11-OH serves as a building block in the synthesis of more complex PEG derivatives, which are utilized in various biomedical applications, including targeted drug delivery and tissue engineering. Its role in modifying surfaces to create biocompatible coatings also makes it essential in medical device development.