Biotin-PEG-azide (MW 1000)

• CAT Number: I014180
• CAS Number: 956494-20-5
• Molecular Weight: 1000(Average)
• Purity: ≥95%
• IUPAC Name: N-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl]-5-(2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl)pentanamide
• InChI: InChI=1S/C34H64N6O13S/c35-40-37-6-8-44-10-12-46-14-16-48-18-20-50-22-24-52-26-28-53-27-25-51-23-21-49-19-17-47-15-13-45-11-9-43-7-5-36-32(41)4-2-1-3-31-33-30(29-54-31)38-34(42)39-33/h30-31,33H,1-29H2,(H,36,41)(H2,38,39,42)
• InChIKey: WETRQYMCASPBIY-UHFFFAOYSA-N
• SMILES: C1C2C(C(S1)CCCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])NC(=O)N2

Biotin-PEG-azide (MW 1000)（Cat No.:I014180）is a bifunctional reagent consisting of a biotin molecule linked to a polyethylene glycol (PEG) chain, which is further conjugated to an azide group. The PEG spacer enhances the solubility and flexibility of the molecule, while the biotin allows for strong binding to avidin or streptavidin, making it useful in bio-conjugation applications. The azide group is reactive in click chemistry, facilitating selective attachment to alkyne-functionalized molecules. This compound is widely used in proteomics, cell biology, and drug delivery systems for tagging, tracking, and functionalizing biomolecules.