Propyl-peg4-nhs

N3-PEG4-ALD

PROPARGYL-N-HYDROXYSUCCINIMIDYL ESTER

5-叔丁氧羰基氨基-3-氧杂戊酸

AZIDO-PEG3-THIOACETATE

2-(2-羟基乙氧基)乙醛

Azido-PEG4-Boc-Hydrazide

ACETICACID,2-OXO-,1,1-DIMETHYLETHYLESTER

四乙二醇二(乙二醇)

叠氮-五聚乙二醇-叠氮