m-PEG6-Tos

m-PEG6-acid，m-PEG5-CH2CH2COOH

m-PEG7-acid，m-PEG6-CH2CH2COOH

m-PEG48-Mal

m-PEG5-t-buyl ester，m-PEG5-Boc

m-PEG6-2-methylacrylate

m-PEG37-acid

m-PEG11-NHS ester

Tr-PEG3，Tr-PEG2-OH

Py-PEG-Py

m-PEG2-NHS ester

m-PEG12-acid

m-PEG8-Tos

m-PEG4-azide

m-PEG9-t-butyl ester，m-PEG9-Boc

m-PEG7-Ms

m-PEG12-t-butyl ester，m-PEG12-Boc

PEG-14，HO-PEG13-OH

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

THP-PEG3，THP-PEG2-OH，Tetrahydropyranyldiethyleneglycol