N-Mal-N-bis(PEG4-acid)，Mal-N-bis(PEG4-C2-acid)

t-boc-N-amido-PEG8-amine

Bromoacetamido-PEG3-Boc-amine

N-methyl-N'-(propargyl-PEG4)-Cy5

Propargyl-PEG10-amine

Propargyl-PEG4-sulfonic acid

Amino-PEG20-acid HCl salt

N-(Azido-PEG10)-N-PEG10-t-butyl ester

Bromo-PEG4-azide

m-PEG24-amine

DBCO-PEG4-Desthiobiotin，Desthiobiotin-PEG4-DBCO

N-(alcohol-PEG2)-N-bis(PEG2-propargyl)

Tetra(3-methoxy-N-(PEG2-prop-2-ynyl)propanamide) Methane

Propargyl-PEG3-NHS ester

m-PEG5-bromide，m-PEG5-Br

N-(Azido-PEG2)-N-Biotin-PEG3-acid

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

Bromo-PEG2-azide，Bromo-PEG2-C2-azide

Propargyl-PEG5-CH2CO2H

IA-PEG-NHS，Iodoacetyl-PEG-NHS，MW：2000