N-Me-N-bis(PEG4-acid)

• CAT Number: I015886
• CAS Number: 2055014-77-0
• Molecular Formula: C23H45NO12
• Molecular Weight: 527.60
• Purity: ≥95%
• Synonyms: 3-[2-[2-[2-[2-[2-[2-[2-[2-(2-carboxyethoxy)ethoxy]ethoxy]ethoxy]ethyl-methylamino]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
• InChI: InChI=1S/C23H45NO12/c1-24(4-8-31-12-16-35-20-18-33-14-10-29-6-2-22(25)26)5-9-32-13-17-36-21-19-34-15-11-30-7-3-23(27)28/h2-21H2,1H3,(H,25,26)(H,27,28)
• InChIKey: GVLKSZBFWWZTQF-UHFFFAOYSA-N
• SMILES: CN(CCOCCOCCOCCOCCC(=O)O)CCOCCOCCOCCOCCC(=O)O

N-Me-N-bis(PEG4-acid)（Cat No.:I015886）is a bifunctional PEG derivative featuring a central N-methyl group substituted with two PEG₄ chains, each terminating in a carboxylic acid. The terminal acids can be readily activated for coupling with primary amines, hydroxyls, or other functional groups, enabling versatile bioconjugation and crosslinking. The PEG₄ spacers enhance solubility, flexibility, and biocompatibility, while minimizing nonspecific interactions and steric hindrance. This reagent is valuable for protein modification, nanoparticle functionalization, hydrogel formation, and drug delivery system development, offering stable, hydrophilic, and well-defined linkages for advanced biomedical research.