NH-bis(PEG3-Boc)，NH-bis(PEG3-C2-NH-Boc)

H2N-PEG6-OH，Amino-PEG6-alcohol，17-Amino-3,6,9,12,15-pentaoxaheptadecan-1-ol

N-(Amino-PEG3)-N-bis(PEG4-t-butyl ester)，N-(Amino-PEG3)-N-bis(PEG4-Boc)

Azido-PEG1-amine，N3-PEG2-NH2，N3-PEG1-CH2CH2NH2

Bis-propargyl-PEG5

N-(Mal-PEG6)-N-bis(PEG3-amine) TFA salt

Bis-propargyl-PEG6

Azido-PEG10-amine，O-(2-Aminoethyl)-O'-(2-azidoethyl)nonaethylene glycol

Propargyl-PEG6-NHS ester

VS-PEG-NHS，Vinylsulfone-PEG-NHS，MW：20000

endo-BCN-PEG2-PFP ester

m-PEG6-amine，1-amino-3,6,9,12,15,18-hexaoxanonadecane

Amino-Tri-(Azide-PEG4-ethoxymethyl)-methane

Amino-Tri-(Azide-PEG10-ethoxymethyl)-methane HCl Salt

Bis-propargyl-PEG14

NH-bis(PEG2-t-butyl ester)，NH-bis(PEG2-C2-Boc)

Amino-PEG20-t-butyl ester

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

m-PEG12-amine，m-dPEG(R)12-amine，MPEG12-NH2

Propargyl-PEG5-acid