t-Butyl 3-(hydroxypropoxyl)-propanoate

Fmoc-N-amido-PEG7-acid

Hydroxy-PEG10-acid sodium salt

1-isothiocyanato-PEG4-Alcohol

THP-PEG5，THP-PEG4-OH

Fmoc-N-amido-PEG4-acid，Fmoc-NH-PEG4-CH2CH2COOH

Fmoc-NH-PEG2-CH2COOH，Fmoc-8-amino-3,6-dioxaoctanoic acid

Nonaethylene glycol

m-PEG3-triethoxysilane，m-PEG3-amido-C3-triethoxysilane

m-PEG11-alcohol，m-PEG11-OH

PEG16，HO-PEG15-OH

Hydroxy-PEG4-CH2CO2H sodium salt，Hydroxy-PEG4-CH2COOH

Hydroxy-PEG12-t-butyl ester，Hydroxy-PEG12-Boc

PEG22，HO-PEG21-OH

m-PEG7-CH2COOH

m-PEG17-acid

m-PEG6-Ms

Hydroxy-PEG11-t-butyl ester，Hydroxy-PEG11-Boc

m-PEG4-azide

m-PEG8-alcohol，Octaethylene glycol monomethyl ether