DBCO-PEG5-acid，DBCO-PEG5-COOH

DBCO-PEG2-PFP ester

Propargyl-PEG5-CH2CO2-NHS

DBCO-PEG24-acid，DBCO-PEG24-COOH

DBCO-NHCO-PEG4-t-butyl ester

NH-bis(C1-PEG1-Boc)，2-Amino-1,3-bis(t-butoxycarbonylethoxy)propane

Diethyl 4-aminoheptanedioate HCl salt，Diethyl 4-aminoheptanedioate

DBCO-PEG12-acid，DBCO-PEG12-COOH

Bis-propargyl-PEG9

DBCO-NHCO-PEG4-NHS ester

Propargyl-PEG6-alcohol

endo-BCN-PEG8-NHS ester

endo-BCN-PEG2-NHS ester

Propargyl-PEG7-alcohol

DBCO-NHCO-PEG4-amine TFA salt

AminooxRuixiG3-propargyl

Sulfo DBCO-PEG4-TFP ester

DBCO-PEG4-acid，DBCO-PEG4-COOH

Propargyl-PEG2-methylamine

endo-BCN-PEG4-amine