Biotin-PEG-COOH (MW 10000)

Biotin-PEG-COOH (MW 10000) is a linear heterobifunctional PEG compound featuring biotin and carboxylic acid functional groups. The biotin component binds with high specificity and affinity to avidin and streptavidin. In the presence of coupling agents, Biotin-PEG-COOH (MW 10000) can be used for biotinylating antibodies, proteins, and other macromolecules containing primary amines.