Azido-PEG4-NHS ester

Bromo-PEG4-azide

DMTr-PEG12-Azide

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

m-PEG3-NHS ester

Biotin-PEG3-amine，Biotin-LC-PEO-NH2，biotin-(PEO)4-NH2

DBCO-PEG15-amine，DBCO-PEG15-NH2

Azido-PEG2-CH2CO2H

1-isothiocyanato-PEG3-Azide

Bromoacetamido-PEG2-azide

Mal-amido-PEG4-acid

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

Mal-PEG11-alcohol

N-Methylaniline-PEG3-TCO

Ald-Ph-PEG2-NHS ester，Ald-Ph-amido-PEG2-C2-NHS ester

Bromoacetamido-PEG2-acid，Bromoacetamido-PEG2-C2-acid

Biotin-PEG24-acid

Ald-CH2-PEG10-t-butyl ester，Ald-CH2-PEG10-Boc

Fmoc-PEG4-NHS ester

N-Boc-PEG8-alcohol，八聚乙二醇-叔丁氧羰基