Propargyl-PEG2-amine，Propargyl-PEG2-NH2

Bis-propargyl-PEG7

Propargyl-PEG1-acid

Propargyl-PEG5-acid

Propargyl-PEG5-amine

Propargyl-PEG8-acid

Propargyl-PEG7-NHS ester

Propargyl-PEG4-5-nitrophenyl carbonate

Propargyl-PEG5-CH2CO2-NHS

Bis-propargyl-PEG4

Propargyl-PEG18-alcohol

bis-PEG4-endo-BCN

bis-PEG2-endo-BCN

Bis-propargyl-PEG6

N-Me-N-bis(PEG2-propargyl)

DBCO-PEG12-acid，DBCO-PEG12-COOH

Propargyl-PEG4-bromide

Propargyl-PEG14-t-butyl ester

Bis-propargyl-PEG2

Propargyl-PEG4-NHS ester