Iodo-PEG3-Azide，Iodo-PEG4-N3

Tr-PEG4，Tr-PEG3-OH

Iodoacetamide-PEG3-azide

m-PEG13-acid，Methyl propionate-PEG12

m-PEG12-CH2CH2NHCH2CH2COOH，m-PEG12-NH-C2-acid

PEG25，HO-PEG24-OH

THP-PEG4，THP-PEG3-OH

PEG22，HO-PEG21-OH

PEG12，HO-PEG11-OH

Iodoacetamido-PEG8-t-butyl ester

m-PEG5-acid，4,7,10,13,16-五氧杂十七烷酸

Heptaethylene glycol

m-PEG4-(CH2)3-acid，三甘醇单甲醚丁酸

Tr-PEG3，Tr-PEG2-OH

m-PEG5-NHS ester

m-PEG24-acid

Hydroxy-PEG1-methyl ester，Hydroxy-PEG1-C2-methyl ester，Methyl 3-(2-hydroxyethoxy)propanoate

Tr-PEG6，Tr-PEG5-OH

m-PEG3-NHS ester

m-PEG9-acid，甲氧基-九聚乙二醇-丙酸