ICG PEG N3 (MW 10000)

ICG PEG N3 (MW 10000) is an indocyanine green (ICG) azide fluorophore used for labeling amino groups in peptides, proteins, and oligonucleotides. This compound acts as a click chemistry reagent, featuring an azide group that can undergo copper-catalyzed azide-alkyne cycloaddition reactions (CuAAC) with alkyne-containing molecules. Additionally, it can participate in strain-promoted azide-alkyne cycloaddition reactions (SPAAC) with molecules bearing DBCO or BCN groups, and it exhibits excitation/emission at 785/813 nm.