PEG21，HO-PEG20-OH

Pyrene-PEG4-acid，Pyrene-amido-PEG4-CH2CH2COOH

HydroxRuixiG2-sulfonic acid，HydroxRuixiG2-C2-sulfonic acid

N-Boc-N'-(mPEG24)-L-Lysine-OH

Fluorescein-PEG6-bis-NHS ester

Mal-NH-ethyl-SS-propionic acid

m-PEG10-NHS ester

m-PEG23-alcohol

PC Alkyne-PEG4-NHS carbonate ester

m-PEG4-acid，m-PEG3-CH2CH2COOH

Fluorescein-PEG6-Acid，Fluorescein-thiourea-PEG6-acid

3-(Azido-PEG5-amino)propanol

m-PEG7-4-nitrophenyl carbonate

DNP-PEG4-t-butyl ester，DNP-NH-PEG4-C2-Boc

PEG5-Tos，Tetraethylene glycol monotosylate

DNP-PEG4-acid

m-PEG10-Tos

Propargyl-PEG1-SS-PEG1-acid

m-PEG11-alcohol，m-PEG11-OH

Iodoacetamido-PEG8-acid