Deferoxamine-PEG12-Gly-Gly-Gly is a bifunctional chelator featuring a BCN moiety for copper-free click chemistry via strain-promoted azide–alkyne cycloaddition (SPAAC) and a Gly-Gly-Gly motif for sortase-mediated ligation. The PEG12 chain enhances solubility and flexibility for bioconjugation applications.
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