Azide-PEG-Ms is a type of compound that is commonly used in pharmaceutical research and development. It is a pegylated molecule that contains an azide functional group, which makes it highly reactive and versatile in a range of chemical reactions. The introduction of functional groups, such as azides, onto the surface of biomolecules is a common strategy used in drug discovery and development to enhance their solubility, stability, and bioactivity. Azide-PEG-Ms can be used for targeted drug delivery, as well as in the development of imaging agents and diagnostic tools. The azide functional group can be easily modified with a variety of other functional groups, making it a valuable tool in the synthesis of complex molecules with specific pharmacological properties.