N-Methylaniline-PEG3-TCO is a short PEG linker featuring a methylaniline and a TCO group. TCO is a click chemistry handle which readily reacts with tetrazine-containing compounds while methylaniline is a highly electron-dense heterocycle with a variety of chemical applications. 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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