Hydroxy-PEG5-C2-methyl ester

• CAT Number: I016565
• CAS Number: 2100306-80-5
• Molecular Formula: C14H28O8
• Molecular Weight: 324.37
• Purity: ≥95%
• Synonyms: methyl 3-[2-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]propanoate
• InChI: InChI=1S/C14H28O8/c1-17-14(16)2-4-18-6-8-20-10-12-22-13-11-21-9-7-19-5-3-15/h15H,2-13H2,1H3
• InChIKey: ZUAYQXPIWZRYOC-UHFFFAOYSA-N
• SMILES: COC(=O)CCOCCOCCOCCOCCOCCO

Hydroxy-PEG5-C2-methyl ester(CAT: I016565) is a short polyethylene glycol (PEG) derivative featuring five ethylene glycol units, a terminal hydroxyl group, and a C2 methyl ester functionality. The dual end-groups provide versatile chemical handles for conjugation and derivatization. Widely used in medicinal chemistry, material science, and bioconjugation, this PEG linker enhances solubility, reduces aggregation, and improves stability of small molecules, peptides, and biomaterials. Its defined chain length offers controlled spacing between functional moieties, making it suitable for drug delivery systems, nanoparticle modification, and surface functionalization. This reagent supports the development of next-generation biomedical materials and precision chemical synthesis applications.