BCN-PEG3-acid (CAS 1807501-82-1) is a special chemical used in bioconjugation, drug delivery, and more. It contains a BCN (bicyclononyne) group and a carboxylic acid group, allowing copper-free click chemistry. As a PEG linker, it has a polyethylene glycol chain that improves water solubility, bioavailability, and reduces immunogenicity of compounds. The PEG3 spacer allows for efficient and flexible molecule conjugation. BCN reacts with azides, beneficial in biological systems sensitive to copper. The carboxylic acid provides a site for additional conjugation, like creating amide bonds with amines.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.