Benzyl-PEG2-azide

• CAT Number: I014158
• CAS Number: 1260001-87-3
• Molecular Formula: C11H15N3O2
• Molecular Weight: 221.26
• Purity: ≥95%
• Synonyms: 2-(2-azidoethoxy)ethoxymethylbenzene
• InChI: InChI=1S/C11H15N3O2/c12-14-13-6-7-15-8-9-16-10-11-4-2-1-3-5-11/h1-5H,6-10H2
• InChIKey: MMTGEJWEROOVON-UHFFFAOYSA-N
• SMILES: C1=CC=C(C=C1)COCCOCCN=[N+]=[N-]

Benzyl-PEG2-azide(CAT: I014158) is a heterobifunctional polyethylene glycol (PEG) linker featuring a benzyl moiety on one end and a terminal azide group on the other, separated by a short PEG2 spacer. The azide functionality enables efficient copper-catalyzed or strain-promoted azide–alkyne cycloaddition (“click chemistry”), forming stable triazole linkages with alkyne-containing molecules. The benzyl group provides hydrophobic character and can serve as a recognition motif or structural handle in conjugation strategies. The PEG2 chain enhances solubility and flexibility, while minimizing steric hindrance. Benzyl-PEG2-azide is widely used in bioconjugation, materials science, nanotechnology, and drug delivery research, supporting versatile molecular assembly.