Cy3-PEG2-Azide

Cy3-PEG2-Azide is a Cyanine 3 (Cy3) dye derivative containing 2 PEG units. Cy3-PEG2-Azide contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

C36H49ClN6O3

649.27

C[N+]1=C(C(C)(C2=C1C=CC=C2)C)/C=C/C=C3N(C4=C(C\3(C)C)C=CC=C4)CCCCCC(NCCOCCOCCN=[N+]=[N-])=O.[Cl-]

Fluorescent Dye

10 mM in DMSO

Room temperature