Azide-PEG-Azide (N3-PEG-N3), MW 5K is a bifunctional PEG derivative with two reactive azido (N3) groups, it is usually a viscous liquid or solid powder, depending on molecular weight . -20℃ can be stored for a long time. It can modify proteins, peptides and other small molecular materials.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.