Azido-PEG-Maleimide is a versatile compound used in pharmaceutical research and development. This molecule contains two functional groups: an azido group and a maleimide group. The azido group is an important bioorthogonal functional group, meaning it can selectively react with other bioorthogonal groups without interfering with biological systems. On the other hand, the maleimide group is a thiol-reactive functional group, which can react with sulfhydryl groups on proteins and peptides. Azido-PEG-Maleimide is commonly used for conjugation with biomolecules, such as peptides, proteins, and antibodies, to form bioconjugates. These bioconjugates have a variety of applications, including drug delivery and imaging. Additionally, Azido-PEG-Maleimide can be used to study protein-protein interactions and protein structure.