Trityl-PEG8-azide

N-(t-butyl ester-PEG3)-N-bis(PEG3-azide)

2-(Azido-PEG3-amido)-1,3-bis(t-butyl ester)

m-PEG8-Ms

Bis-Mal-PEG6

Ald-CH2-PEG5-t-butyl ester，Ald-CH2-PEG5-Boc

Chloroacetamido-PEG4-t-Butyl Ester，Chloroacetamido-PEG4-C2-Boc

Tetrazine-PEG5-NHS ester

Tr-PEG5，Tr-PEG4-OH

DNP-PEG2-acid，DNP-NH-PEG2-C2-acid

N-(Azido-PEG4)-N-bis(PEG4-NHS ester)

Fmoc-N-amido-PEG4-CH2-aldehyde

Azido-PEG16-t-butyl ester，Azido-PEG16-Boc

m-PEG11-azide

Azido-PEG9-t-butyl ester，Azido-PEG9-Boc

Mal-PEG12-NHS ester

NH-bis(PEG1-azide)，NH-bis(C2-PEG1-azide)

Thiol-PEG3-t-butyl ester，Thiol-PEG3-Boc

m-PEG3-ONHBoc，m-PEG3-aminooxy-Boc

Bromoacetamido-PEG3-Boc-amine