DNP-PEG2-acid，DNP-NH-PEG2-C2-acid

N-Boc-N-bis(PEG1-azide)，N-Boc-N-bis(C2-PEG1-azide)

Biotin-PEG11-Mal

Amino-PEG4-alcohol，2-{2-[2-(2-Aminoethoxy)ethoxy]ethoxy}ethanol

N-Mal-N-bis(PEG2-t-butyl ester)，N-Mal-N-bis(PEG2-C2-Boc)

Azido-PEG1-Val-Cit-PAB-OH

Amino-PEG10-amine，NH2-PEG10-CH2CH2NH2

t-Boc-N-amido-PEG3-acid，Boc-NH-PEG3-CH2CH2COOH

Fluorescein-PEG2-azide，Fluorescein-thiourea-PEG2-azide

HO-PPG1-PEG2-PPG1-OH，Propanol-PEG3-CH2OH

Tetra-(amido-PEG10-azide)

m-PEG5-NHS ester

Amino-SS-PEG12-acid

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

N-(Azido-PEG4)-N-Boc-PEG3-t-butyl ester，N-Azido-PEG4-N-Boc-N-PEG3-Boc

Lipoic acid-PEG-NHS，LA-PEG-NHS，MW:20000

Benzyl-PEG2-Tos，1-benzyloxy-2-tosyloxyethane，2-Benzyl-Oxyethyl Chloroformate

m-PEG3-4-nitrophenyl carbonate

TAMRA-Azide-PEG-Biotin

Bromo-PEG1-acid，3-(2-Bromoethoxy)propanoic acid