Azido-PEG2-azide

• CAT Number: R008657
• CAS Number: 59559-06-7
• Molecular Formula: C6H12N6O2
• Molecular Weight: 200.20
• Purity: ≥95%
• Synonyms: 1-azido-2-[2-(2-azidoethoxy)ethoxy]ethane
• InChI: InChI=1S/C6H12N6O2/c7-11-9-1-3-13-5-6-14-4-2-10-12-8/h1-6H2
• InChIKey: OHZGAFKSAANFAS-UHFFFAOYSA-N
• SMILES: C(COCCOCCN=[N+]=[N-])N=[N+]=[N-]

Azido-PEG2-azide（Cat No.:R008657）is a symmetrical bifunctional linker containing two terminal azide groups connected by a short polyethylene glycol (PEG2) spacer. The azide groups enable bioorthogonal click chemistry reactions, particularly copper-catalyzed azide-alkyne cycloaddition (CuAAC) or strain-promoted azide-alkyne cycloaddition (SPAAC). The PEG2 spacer imparts flexibility, hydrophilicity, and reduced steric hindrance, facilitating efficient conjugation. This reagent is widely applied in bioconjugation, polymer modification, and chemical biology for crosslinking, labeling, and creating multifunctional molecules. Azido-PEG2-azide is especially useful for designing biomaterials, drug delivery systems, and functionalized probes in research applications.