Bromo-PEG2-phosphonic acid

m-PEG4-succinimidyl carbonate，m-PEG4-O-NHS ester

Bromo-PEG5-phosphonic acid

SPDP-PEG6-NHS ester

Acid-PEG4-NHS ester

Propargyl-PEG4-S-PEG4-acid

Fmoc-PEG3-Ala-Ala-Asn(Trt)-PAB

Methyltetrazine-PEG11-NH-Boc

TCO-PEG12-TFP ester

Tos-PEG7-CH2CO2tBu，Tos-PEG6-CH2-Boc

SPDP-PEG36-acid

Methyltetrazine-PEG24-NH-Boc

Tos-PEG13-Tos

TCO-PEG12-NHS ester

SPDP-PEG8-NHS ester，LC-PEG8-SPDP，SPDP-dPEG

Azido-PEG3-S-PEG4-t-butyl ester

Methyltetrazine-PEG4-t-butyl ester

Tos-PEG3-Tos，Diethylene glycol bis(p-toluenesulfonate)

DM1-MCC-PEG4-BCN

TCO-PEG3-acid，TCO-PEG3-COOH