Axispharm offers you high-purity N-(m-PEG4)-N'-hydroxypropyl-Cy5 CAS:2107273-20-9, a cyanine-labeled PEG linker with excitation/emission maxima at 649/667 nm that contains hydroxyl groups.
Fluorescent Dye > Cyanine Dyes > Cyanine5 Dye
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