(3aS,4S,6aR)-Biotin-PEG4-Alkyne
(3aS,4S,6aR)-Biotin-PEG4-Alkyne is an alkyne-activated biotinylation reagent. (3aS,4S,6aR)-Biotin-PEG4-Alkyne can be reacted with azides via a copper-catalyzed click reaction. Biotin-labeled biomolecules can be bound to avidin or streptavidin for further purification and detection.