Azido-PEG24-NHS ester

Azido-PEG24-NHS ester is a monodisperse, high purity PEG linker. The azide group enables Click Chemistry. The NHS ester can be used to label the primary amines (-NH2) of proteins, oligonucleotides, and other amine-containing biomolecules. The hydrophilic PEG spacer adds to the water solubility of this reagent.