Hydrazide-PEG4-Desthiobiotin

Azide-PEG3-Desthiobiotin

Amine-PEG3-Desthiobiotin

Amine-PEG4-Desthiobiotin

Cy5-NHS sodium sulfide

甘胆酸-PEG10-碘

苄基-二十四聚乙二醇-叠氮

乙酸甲酯-一聚乙二醇-乙酸甲酯

2-(2-(2-(2-(4-(6-methyl-1,2,4,5-tetrazin-3-yl)phenoxy)ethoxy

BnOOC-PEG12-COOH