TCO-PEG4-biotin is a biotinylation reagent containing TCO moieties. TCO enable click chemistry with tetrazine. The hydrophilic PEG spacer improves the water solubility of compounds. 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.
Usually ships within 24 hours.