8-Arm-PEG-Biotin (MW 2000)

8-Arm-PEG-Biotin (MW 2000) is a multiarmed PEG derivative with biotin at each terminal of the eight arms. 8-Arm-PEG-Biotin (MW 2000) is for PEGylation by binding to streptavidin and avidin with high affinity and specificity.