Azido-PEG-Thiol

Azido-PEG-Thiol is a heterobifunctional PEG reagent, also known as Azide-functional PEG-thiol, combining an azide group for click chemistry and a thiol group for site-specific binding to maleimides or gold surfaces. The thiol group enables stable thioether bond formation, while the azide allows efficient cycloaddition with alkynes. Azido-PEG-Thiol reagents are ideal for sequential bioconjugation strategies in protein modification, nanoparticle assembly, and biosensor development.