N-(endo-BCN-PEG2-amido-PEG3)-N-bis-(PEG3-Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane)

NH-bis(PEG2-Boc)，NH-bis(C2-PEG2-NH-Boc)

Amino-PEG7-alcohol，NH2-PEG7，20-Amino-3,6,9,12,15,18-hexaoxaicosan-1-ol

DBCO-PEG8-PFP ester

Amino-PEG4-benzyl ester

DBCO-PEG2-amine

t-Boc-Aminooxy-PEG10-acid

DNP-PEG3-azide

AZD-PEG5-methyl ester

N-(Tos-PEG4)-N-bis(PEG4-t-butyl ester)，N-(Tos-PEG4)-N-bis(PEG4-Boc)

N-(Azido-PEG4)-biocytin

Silane-PEG-Maleimide，Mal-PEG-Silane，MW：1000

t-Boc-aminooxy-PEG4-propargyl

Propargyl-PEG6-NHS ester

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

N-(m-PEG4)-N'-(Biotin-PEG2-Amido-PEG4)-Cy5

N-(Hydroxy-PEG3)-N-Boc-PEG4-t-butyl ester

9-(Amino-PEG9-ethylcarbamoyl)nonanoic t-butyl ester

6-FAM PEG3-COOH，6-Carboxyfluorescein-PEG3-acid

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