Fmoc-N-amido-PEG16-acid，Fmoc-NH-PEG16-CH2CH2COOH

Fmoc-PEG24-alcohol

Fmoc-PEG3-NHS ester，Fmoc-PEG3-C2-NHS ester

t-Boc-N-amido-PEG24-acid，Boc-NH-PEG24-CH2CH2COOH

m-PEG4-acid，m-PEG3-CH2CH2COOH

PC Azido-PEG3-NHS carbonate ester

Diketone-PEG12-Biotin

Amino-PEG3-sulfonic acid HCl salt，Amino-PEG3-C2-sulfonic acid

N-(Biotin)-N-bis(PEG1-alcohol)

t-Boc-N-amido-PEG4-amine，Boc-NH-PEG4-CH2CH2NH2

Biotin-PEG3-Mal

Benzyl-PEG5-CH2CO2tBu，BnO-PEG4-Boc

Bis-PEG11-acid

Diketone-PEG4-PFP ester

Hydrox-PEG6-Tos，PEG6-Tos

Bis-PEG11-NHS ester

Amino-PEG2-t-Boc-hydrazide，Amino-PEG2-C2-hydrazide-Boc

Boc-N-amido-PEG12-amine

Amino-PEG6-amine，1,20-Diamino-3,6,9,12,15,18-hexaoxaeicosane

Bis-PEG3-acid，3,3'-[oxybis(ethane-2,1-diyloxy)]dipropanoic acid