Azido-PEG-Hydrazide

Azido-PEG-Hydrazide is a heterobifunctional PEG reagent, also known as Azide-functional PEG-hydrazide, combining an azide group for bioorthogonal click chemistry and a hydrazide terminus for specific conjugation with aldehydes or ketones. The hydrazide enables stable hydrazone bond formation under mild conditions, while the azide allows efficient cycloaddition with alkynes. Azido-PEG-Hydrazide reagents are ideal for glycoprotein labeling, biomolecule immobilization, and controlled bioconjugation strategies.