m-PEG24-Mal

• CAT Number: I045908
• CAS Number: 2579693-28-8
• Molecular Formula: C56H106N2O27
• Molecular Weight: 1239.44
• Purity: ≥95%
• Synonyms: 3-(2,5-dioxopyrrol-1-yl)-N-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl]propanamide
• InChI: InChI=1S/C56H106N2O27/c1-62-8-9-64-12-13-66-16-17-68-20-21-70-24-25-72-28-29-74-32-33-76-36-37-78-40-41-80-44-45-82-48-49-84-52-53-85-51-50-83-47-46-81-43-42-79-39-38-77-35-34-75-31-30-73-27-26-71-23-22-69-19-18-67-15-14-65-11-10-63-7-5-57-54(59)4-6-58-55(60)2-3-56(58)61/h2-3H,4-53H2,1H3,(H,57,59)
• InChIKey: IRQWFNZIEAPTBJ-UHFFFAOYSA-N
• SMILES: COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)CCN1C(=O)C=CC1=O

m-PEG24-Mal（Cat No.:I045908）is a monofunctional polyethylene glycol derivative featuring a maleimide group at one end and a methoxy capping group at the other. The maleimide moiety enables site-specific, stable conjugation with thiol groups, while the PEG24 chain offers extended length, hydrophilicity, and flexibility. This design improves water solubility, reduces nonspecific binding, and minimizes steric hindrance, making it highly effective for bioconjugation. m-PEG24-Mal is commonly employed in protein modification, antibody–drug conjugates, and nanomaterial functionalization, where controlled spacing and enhanced solubility are critical for performance.