N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester)

• CAT Number: I014539
• CAS Number: 2112732-01-9
• Molecular Formula: C24H41NO11
• Molecular Weight: 519.58
• Purity: ≥95%
• Synonyms: methyl 3-[2-[2-(3-methoxy-3-oxopropoxy)ethyl-[3-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]propanoyl]amino]ethoxy]propanoate
• InChI: InChI=1S/C24H41NO11/c1-4-10-31-16-18-35-20-21-36-19-17-34-11-5-22(26)25(8-14-32-12-6-23(27)29-2)9-15-33-13-7-24(28)30-3/h1H,5-21H2,2-3H3
• InChIKey: JCIALVYXFZVDJH-UHFFFAOYSA-N
• SMILES: COC(=O)CCOCCN(CCOCCC(=O)OC)C(=O)CCOCCOCCOCCOCC#C

N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester)（Cat No.:I014539）is a multifunctional PEG-based linker tailored for bioconjugation and chemical biology. It incorporates a terminal propargyl group that enables efficient click chemistry with azides, while the PEG4 spacer enhances solubility, flexibility, and minimizes steric hindrance. The two PEG1-methyl ester groups provide reactive ester handles for further derivatization or conjugation to biomolecules and polymers. This balanced architecture supports orthogonal reactivity, allowing the construction of multifunctional conjugates. It is particularly valuable for drug delivery, diagnostic probe development, and advanced chemical biology applications requiring precision and versatility.