Cy3.5 alkyne, a fluorescent dye, is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. Cy3.5 alkyne can be used for the detection and labeling of azide-containing molecules/ biomolecules with fluorescence spectroscopy after azide-alkyne cycloaddition[1].
