TCO-PEG8-TCO is a PEG reagent containing TCO moiety at both ends of the molecule. TCO group specifically and efficiently reacts with tetrazine. The hydrophilic PEG8 arm increases the solubility of compounds in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries. The half-life of TCO is short as it will naturally isomerize into CCO (cis-cycloctene) and lose the reactivity. TCO compound is not recommended for long term storage.
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