• CAS No.：
  52190-55-3
• Synonyms：
  mPEG4-thiol
  2,5,8,11-Tetraoxatridecane-13-thiol
  2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethanethiol
  Thiol-PEG4-methyl
  
• Purity：
  ≥95%
• MF：
  C₉H₂₀O₄S
• MW：
  224.3
• Recommended Storage Condition：
  Store at -5°C,keep in dry and avoid sunlight.
• Uses：
  Applicated in medical research, drug-release, nanotechnology and new materials research, cell culture. In the study of ligand, polypeptide synthesis support, a graft polymer compounds, new materials, and polyethylene glycol-modified functional coatings and other aspects of the active compound.

mPEG4-SH, or m-PEG4-thiol (CAS: 52190-55-3), is a PEG linker featuring a thiol group. This thiol group is highly reactive and can form stable covalent bonds with maleimide, OPSS, and vinylsulfone, facilitating a variety of chemical modifications. Additionally, mPEG4-SH can form strong S-metal bonds with transition metals like gold and silver. The PEG spacer in mPEG4-SH enhances the aqueous solubility of the compound, making it more hydrophilic, which is advantageous for various applications.

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