Biotin-PEG-OH

Biotin-PEGn-OH is primarily used as a heterobifunctional crosslinker for conjugating biotin to hydroxyl-bearing molecules or surfaces, enabling strong streptavidin-biotin binding for detection and purification assays. Its key benefits include excellent water solubility, biocompatibility, and flexibility due to the PEG spacer, which reduces steric hindrance and improves binding efficiency.