Tr-PEG5，Tr-PEG4-OH

Hydroxy-PEG4-methyl ester，Hydroxy-PEG4-C2-methyl ester

m-PEG10-alcohol，Decaethylene glycol monomethyl ether

m-PEG24-NHS ester

THP-PEG7，THP-PEG6-OH

m-PEG6-alcohol，Hexaethylene glycol monomethyl ether

Fmoc-N-amido-PEG20-acid，Fmoc-N-PEG20-acid

Fmoc-PEG4-NHS ester

PEG5-Tos，Tetraethylene glycol monotosylate

m-PEG25-NHS ester

Hydroxy-PEG2-acid sodium salt，Hydroxy-PEG2-acid

m-PEG3-acid chloride，m-PEG3-Propanoyl chloride

m-PEG24-alcohol

m-PEG5-sulfonic acid

m-PEG9-t-butyl ester，m-PEG9-Boc

m-PEG3-Ms

3-(m-PEG12-ethoxycarbonyl)propanoic acid，m-PEG12-COO-propanoic acid

m-PEG8-Ms

m-PEG10-t-butyl ester，m-PEG10-Boc

Tr-PEG4，Tr-PEG3-OH