Methyltetrazine-PEG3-DOTA(tBu)3 serves as a versatile TCO-reactive PEG linker for imaging and diagnostics. Three t-butyl groups protect the DOTA chelator for di- and trivalent cations, and they can be deprocted under acidic conditions. The PEG spacer imparts solubility in aqueous media. Reagent grade, for research use only.
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