Sulfo-Cy3 Picolyl Azide is a fluorophore featuring a sulfonate group and a picolyl azide. Cy3 is a cyanine dye with excitation and emission maxima at 555 nm and 570 nm respectively. The sulfonate group on the Cy3 dye increases this compound’s water solubility for easy use in vivo. Compared with conventional azides, picolyl azide will allow to use at least 10 fold less copper catalyst to yield the same click reaction rate as regular azide one, because picolyl moiety can chelate Cu to raise the effective concentration of Cu(I) at the reaction site. Reagent grade, for research purpose.
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