6-Arm-PEG-Biotin (MW 600)
https://www.abfrontier.com/shop/cell25sk33376-6-arm-peg-biotin-mw-600-85774
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6-Arm-PEG-Biotin (MW 600) is a PEG derivative containing a biotin group. Biotin can form a stable non-covalent bond with streptavidin.
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