mPEG-TCO, MW 10,000 is a polyPEG reagent consisting of a TCO group that specifically and efficiently reacts with tetrazine. The hydrophilic 10k PEG polymer improves the solubility of the compound 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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