蛋白质标记：由于含有生物素基团，Biotin-PEG4-Amine-C6-Azide可以与亲和素或链霉亲和素等蛋白质紧密结合，从而用于蛋白质标记、检测和定量生物样品中的蛋白质。

The result was a new reaction in which not only the azide was transferred, but the entire molecular unit to which the azide is linked. The chemists chose a group called Mes* as the molecular unit ...