Sulfo-Cy3.5 alkyne is a very hydrophilic sulfonated derivative with four sulfo groups and a terminal propargyl group. Sulfo-Cy3.5 alkyne is commonly used as a FRET-donor in a pair with Cyanine5 and as a FRET-acceptor in a pair with Cyanine3. The propargyl group can react with azide-bearing compounds to form stable triazole rings. Reagent grade, for research use only.
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