RhB-PEG-NHS, MW 3,400 is a linear polyPEG with a terminal red fluorescent probe (rhodamine) for labeling and NHS ester moiety. The hydrophilic polyPEG spacer increases solubility in aqueous media. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. Reagent grade, for research use only.
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