Results for Lipids & Polymers ( 6586 )
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DBCO-N-bis(PEG4-amidoPEG8-TCO) is a branched PEG containing two TCO moeties which act as click chemistry handles that readily react with tetrazine groups on a target molecule. The DBCO group is a click chemistry handle which readily reacts with azide groups. The PEG8 spacer improves the water-solubility of the molecule.
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Cy5-PEG-CH2COO-NHS, MW 2,000 contains Cy5, which is a bright red fluorescent dye with excitation and emission maxima at 651 nm and 670 nm respectively, and a free NHS ester that can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The PEG polymer increases the hydrophilicity of the conjugated molecule.
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BP Fluor 647-PEG-CH2COOH, MW 2,000 is a polyPEG dye comprised of BP Fluor 647, which is a bright green-fluorescent dye optimal for use with the 633, 650 nm Argon laser. The dye is water soluble and pH-insensitive from pH 4 to pH 10. The dye has 4 sulfonate groups to make it very water soluble and less aggregating in the aqueous solution. The free carboxylic acid can react with amines in the presence of a coupling agent such as HATU. With this reagent, BP Fluor 647 can be attached to nearly any amine-bearing molecule.