Axispharm offers you high purity N,N'-bis-(azide-PEG3)-Cy5 CAS:2107273-46-9 is a cyanine dye PEG linker with excitation/emission maxima at 649/667 nm, it contains two azide groups, Click Chemistry can be realized.
Fluorescent Dye > Cyanine Dyes > Cyanine5 Dye
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