Active-Mono-Sulfone-PEG8-amido-Methyltetrazine

Bromo-PEG3-bromide，1,11-ibromo-3,6,9-trioxaundecane

Mal-amido-PEG4-NHS

t-Boc-N-amido-PEG10-acid，Boc-NH-PEG10-CH2CH2COOH

t-Boc-N-Amido-PEG6-propargyl， Boc-NH-PEG6-propargyl

m-PEG10-acid

N-(PEG1-OH)-N-Boc-PEG2-propargyl

Fmoc-NH-PEG4-CH2COOH

Iodoacetamido-PEG8-acid

m-PEG13-acid，Methyl propionate-PEG12

Azido-PEG3-succinimidyl carbonate，Azido-PEG3-O-NHS ester

N,N'-bis-(azide-PEG3)-chlorocyclohexenyl Cy7

Mal-amido-PEG12-TFP ester

17-(Bromoacetamido-PEG9-ethylcarbamoyl)heptadecanoic acid

N-DBCO-N-bis(PEG2-NHS ester)，N-DBCO-N-bis(PEG2-C2-NHS ester)

Lipoic acid-PEG-NHS，LA-PEG-NHS，MW:1000

THP-PEG4，THP-PEG3-OH

Biotin-PEG3-acid

Lipoamido-PEG4-acid，LIPOAMIDO-PEG4-COOH

Azido-PEG36-t-butyl ester，Azido-PEG36-Boc