m-PEG4-CH2-methyl ester

• CAT Number: I016447
• CAS Number: 1920109-55-2
• Molecular Formula: C12H24O6
• Molecular Weight: 264.32
• Purity: ≥95%
• Synonyms: methyl 4-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]butanoate
• InChI: InChI=1S/C12H24O6/c1-14-6-7-17-10-11-18-9-8-16-5-3-4-12(13)15-2/h3-11H2,1-2H3
• InChIKey: XIAKKRXIAOWIKK-UHFFFAOYSA-N
• SMILES: COCCOCCOCCOCCCC(=O)OC

m-PEG4-CH2-methyl ester(CAT: I016447) is a polyethylene glycol (PEG) derivative featuring a short, four-unit PEG spacer terminated with a methyl ester group. This hydrophilic linker improves compound solubility and stability while offering flexibility in conjugation strategies. The PEG4 chain minimizes steric hindrance and enhances aqueous compatibility, making it suitable for modifying small molecules, peptides, or biomolecules. The terminal methyl ester can be further transformed into reactive functional groups, enabling diverse coupling applications. m-PEG4-CH2-methyl ester is widely used in chemical biology, drug delivery, and bioconjugation research, providing a versatile scaffold for linker design and molecular modification.