Br-PEG7-Br

• CAT Number: I016284
• CAS Number: 177987-04-1
• Molecular Formula: C16H32Br2O7
• Molecular Weight: 496.23
• Purity: ≥95%
• Synonyms: 1-[2-[2-(2-bromoethoxy)ethoxy]ethoxy]-2-[2-[2-[2-(2-bromoethoxy)ethoxy]ethoxy]ethoxy]ethane
• InChI: InChI=1S/C16H32Br2O7/c17-1-3-19-5-7-21-9-11-23-13-15-25-16-14-24-12-10-22-8-6-20-4-2-18/h1-16H2
• InChIKey: WZVUWDFPUXHBBR-UHFFFAOYSA-N
• SMILES: C(COCCOCCOCCBr)OCCOCCOCCOCCBr

Br-PEG7-Br(CAT: I016284) is a symmetric, bifunctional polyethylene glycol (PEG) derivative featuring bromide groups at both termini of a 7-unit PEG chain. The bromide functionalities serve as versatile reactive handles for nucleophilic substitution reactions, enabling further functionalization with amines, thiols, or other nucleophiles. The PEG7 spacer imparts flexibility, hydrophilicity, and improved solubility in both aqueous and organic media, while also reducing steric hindrance in conjugation processes. This reagent is particularly useful for preparing custom PEG-based linkers, surface modifications, and polymer architectures, as well as for applications in drug delivery, materials science, and advanced chemical biology research.