Hydroxy-PEG4-C2-methyl ester

• CAT Number: I016566
• CAS Number: 2228857-35-8
• Molecular Formula: C12H24O7
• Molecular Weight: 280.31
• Purity: ≥95%
• Synonyms: methyl 3-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]propanoate
• InChI: InChI=1S/C12H24O7/c1-15-12(14)2-4-16-6-8-18-10-11-19-9-7-17-5-3-13/h13H,2-11H2,1H3
• InChIKey: ABLVCDPHCRXTRK-UHFFFAOYSA-N
• SMILES: COC(=O)CCOCCOCCOCCOCCO

Hydroxy-PEG4-C2-methyl ester(CAT: I016566) is a short polyethylene glycol (PEG) derivative featuring four ethylene glycol units, a terminal hydroxyl group, and a C2 methyl ester functionality. Its bifunctional design provides versatile reactive handles for further chemical modification, enabling controlled conjugation and linker chemistry. The PEG4 spacer imparts hydrophilicity, flexibility, and reduced steric hindrance, enhancing solubility and stability of attached molecules. Widely applied in medicinal chemistry, bioconjugation, and materials science, Hydroxy-PEG4-C2-methyl ester is particularly useful in drug delivery research, nanoparticle engineering, and surface functionalization. Its defined structure offers reliable molecular spacing for the development of advanced biomedical materials and synthetic applications.