Cy5-PEG3-azide

N,N'-bis-(propargyl-PEG4)-Cy5

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

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

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

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

N-methyl-N'-methyl-O-(m-PEG4)-O'-(acid-PEG5)-Cy5

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

Cy5-PEG6-acid

N-methyl-N'-(hydroxRuixiG2)-Cy5

N-(m-PEG4)-N'-(azide-PEG4)-Cy7

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

N-(m-PEG4)-N'-(acid-PEG3)-Benzothiazole Cy5

Cy5-PEG5-amine HCl salt，Cy5-PEG5-amine hydrochloride

N,N'-bis-(acid-PEG3)-Benzothiazole Cy5

Bis-(N,N'-carboxyl-PEG4)-Cy5

N-(m-PEG4)-N'-(PEG2-NHS ester)-Cy5

N-(m-PEG4)-N'-(hydroxRuixiG2)-Cy5

N-(m-PEG4)-N'-(4-hydroxycyclohexyl-1-amido-PEG4)-Cy5

N-(m-PEG4)-N'-(PEG2-acid)-Cy5