PC Biotin-PEG3-NHS carbonate ester is a heterobifunctional linker with a photocleavable biotin and an NHS carbonate ester for amine coupling, connected by a PEG3 spacer specifically for solubility and flexibility, enabling reversible biotinylation and light-controlled release.
Polyethylene Glycol PEG Linkers > Biotin PEG > Cleavable Biotin
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