BP Fluor 647-PEG2-TCO is a BP Fluor 647 dye ligated to a TCO group via a hydrophilic PEG spacer. BP Fluor 647 is red and water-soluble fluorescent dye with excitation and emission maxima at 648 nm and 671 nm respectively. TCO is a click chemistry handle which readily reacts with tetrazine groups to label target molecules.
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