Biotin-PEG₄-amine

KEY FEATURES: • Polyethylene glycol (PEG) groups in spacer arm enhances water solubility of biotinylated molecules • Spacer arms providing slightly different options for controlling steric hindrance and hydrophilicity • Water-soluble; can be used under physiologic conditions APPLICATIONS: • Biotinylation: Label molecules and surfaces for assays or affinity purification methods involving avidin or streptavidin probes and resins • Amine-activated: Primary amine can be crosslinked to proteins and material surfaces using EDC and other crosslinkers