Fmoc-Lys (biotin-PEG4)-OH is a Lysine embedded biotin PEG linkers containing a carboxylic group and Fmoc-protected amine. Reaction of carboxylic with primary amino (-NH2) forms stable, irreversible amide bonds. The Fmoc group can be deprotected under basic condition to release the free amine which can be used for further conjugations. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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