TFA Amine-PEG-Fluor-647 TEA salts, MW 2,000 is a PEG-dye conjugate featuring a primary amine and a Fluor 647 dye. Primary amines are versatile building blocks which are most easily employed in coupling reactions with carboxylic acids with the help of activators such as HATU or EDC. Fluor 647 is a bright far-red fluorophore with excitation and emission maxima of 650 nm and 671 nm respectively.
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