Propyne-PEG4-amine

N-(hydroxy-PEG2)-N'-(azide-PEG3)-Cy5，N-PEG3-N'-(azide-PEG3)-Cy5

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

Propyne-PEG12-amine

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

Propargyl-PEG7-NHS ester

N-(hydroxy-PEG2)-N'-(propargyl-PEG4)-Cy5

Cy5-PEG6-acid

DBCO-PEG4-amine，DBCO-PEG4-NH2

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

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

5-FITC-PEG6-COOH，Fluorescein-PEG6-acid

5-FITC-PEG4-alkyne，Fluorescein-PEG4-alkyne

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

N-hydroxypropyl-N'-(azide-PEG3)-Cy3

5-FITC-PEG3-NHBoc，Fluorescein-PEG3-NHBoc

Bis-(N,N'-NHS-PEG4)-Cy5，Bis-(N,N'-PEG4-NHS ester)-Cy5

APN-C3-PEG4-azide

5-FITC-PEG4-Amine，Fluorescein-PEG4-NH2

5-FITC-PEG4-azide，Fluorescein-PEG4-N3