Sulfo TCO-PEG4-amine is a water-soluble reagent containing a TCO click chemistry handle to rapidly and efficiently react with tetrazines, and an amine group which may be further derivatized. The sulfo group and PEG chain improve the hydrophilicity of the compound. Reagent grade, for research purpose. 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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