The endo-BCN-PEG3-acid linker CAS: 1807501-82-1 has a BCN group and a terminal carboxylic acid. The BCN reacts with azide-labeled biomolecules. The carboxylic acid forms stable amide bonds with amines using reagents like EDC or HATU. The PEG spacer boosts water solubility of the final bioconjugates.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
