Biotin-PEG4-Picolyl azide CAS# 2222687-71-8 formule: C27H42N8O7S purity: ≥95%. 3000+ high purity PEG Linkers in stock. Support custom synthesis.Fast Shipping.
Polyethylene Glycol PEG Linkers > Biotin PEG > Biotin-PEG-Azide
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