Cy5.5-PEG-DBCO (MW 5000)

Cy5.5-PEG-DBCO (MW 5000) is a fluorescent probe that contains the Cy5.5 dye. It includes a clickable functional group, DBCO, along with PEG, enabling it to undergo strain-promoted azide-alkyne cycloaddition (SPAAC) with molecules that have azide groups.