m-PEG24-acid

• CAT Number: I016278
• CAS Number: 2248203-61-2
• Molecular Formula: C50H100O26
• Molecular Weight: 1117.31
• Purity: ≥95%
• Synonyms: 3-[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]propanoic acid
• InChI: InChI=1S/C50H100O26/c1-53-4-5-55-8-9-57-12-13-59-16-17-61-20-21-63-24-25-65-28-29-67-32-33-69-36-37-71-40-41-73-44-45-75-48-49-76-47-46-74-43-42-72-39-38-70-35-34-68-31-30-66-27-26-64-23-22-62-19-18-60-15-14-58-11-10-56-7-6-54-3-2-50(51)52/h2-49H2,1H3,(H,51,52)
• InChIKey: DLRHQDPWEDMSOU-UHFFFAOYSA-N
• SMILES: COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)O

m-PEG24-acid(CAT: I016278) is a monofunctional polyethylene glycol (PEG) derivative featuring a methoxy group at one terminus and a carboxylic acid group at the other. The PEG24 chain provides a long, flexible, and highly hydrophilic spacer that improves solubility, reduces steric hindrance, and minimizes non-specific interactions. The terminal carboxyl group can be readily activated for conjugation with primary amines or other nucleophiles, forming stable amide or ester linkages. With its extended chain length, m-PEG24-acid is particularly useful in bioconjugation, drug delivery, surface passivation, and biomaterials engineering where enhanced spacing and biocompatibility are required.