[CAS NO. 1422540-88-2]  S-acetyl-PEG4-Alkyne

• CAS No.：
  1422540-88-2
• Synonyms：
  S-acetyl-PEG4-propargyl
  Acetylthio-PEG4-Alkyne
  
• Purity：
  ≥95%
• MF：
  C₁₃H₂₂O₅S
• MW：
  290.4
• 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.

S-acetyl-PEG4-Alkyne (S-acetyl-PEG4-propargyl) is a PEG linker with a sulfur acetyl group and a propargyl moiety. The sulfur acetyl group can be deprotected to form a reactive thiol, while the propargyl group enables copper-catalyzed azide-alkyne Click Chemistry with azide-bearing molecules, producing a stable triazole linkage. The PEG linker enhances water solubility, making it ideal for bioconjugation and applications in aqueous environments.

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