N,N'-bis-(azide-PEG3)-Cy5

Cy5-PEG4-acid

N-(m-PEG4)-N'-(DBCO-PEG4)-Cy5

N-(azide-PEG3)-N'-(Mal-PEG4)-Cy5

N-methyl-N'-(Azido-PEG2-C5)-Cy5

N-methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy3

N-(m-PEG4)-N'-(Biotin-PEG2-Amido-PEG4)-Cy5

N,N'-bis-(azide-PEG3)-chlorocyclohexenyl Cy7

N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5

N-(m-PEG4)-N'-(azide-PEG3)-Cy5

N-(m-PEG9)-N'-(propargyl-PEG9)-Cy5

N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(azide-PEG4)-Cy5

N-(m-PEG4)-N'-(PEG4-acid)-Cy5

N-(m-PEG4)-N'-(PEG4-NHS ester)-Cy5

N-(m-PEG9)-N'-(PEG5-acid)-Cy5

N-(m-PEG4)-N'-(azide-PEG4)-Cy3

N-methyl-N'-(propargyl-PEG4)-Cy5

N-(azide-PEG3)-N'-(PEG4-NHS ester)-Cy5

N-(m-PEG4)-3,3-Dimethyl-3H-indole-N'-(acid-PEG3)-Benzothiazole Cy5

N-(azide-PEG3)-N'-(Amine-C3-PEG4)-Cy5，N-(azide-PEG3)-N'-(Amine-C3-Amide-PEG4)-Cy5