Biotin-EDA-PEG4-PFP is a linker for bio-conjugation that contains a biotin group and a terminal PFP group linked through a linear PEG chain. The PFP ester can conjugeate with amine bearing molecule under mild conditions.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.