PC Azido-PEG7-NHS carbonate ester constitutes a photocleavable PEG linker featuring an azido moiety for copper-catalyzed click chemistry with alkyne, DBCO, BCN, and NHS carbonate ester to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. This structure allows for efficient photorelease of linked molecules, typically achieving over 90% cleavage in 5-25 minutes using a near-UV lamp
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