Propyne-PEG6-thiol

5-FITC-PEG5-NHS ester，Fluorescein-PEG5-NHS

SiR-PEG4-BCN

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

SiR-PEG4-NHS ester

Cy5-PEG4-acid

5-TAMRA-PEG3-Azide，TAMRA-PEG3-N3

5-FITC-PEG3-azide，Fluorescein-PEG3-N3

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

Propargyl-PEG7-alcohol

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

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

Cy5-PEG3-azide

5-TAMRA-PEG4-Alkyne

Bis-(N,N'-amine-PEG3)-Cy5 TFA salt，Bis-(N,N’-amine-PEG3)-Cy5

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

5-TAMRA-PEG4-Methyltetrazine

Propargyl-PEG6-acid

Azido-PEG15-t-butyl ester

SiR-PEG4-tetrazine