• CAS No.：
  756525-99-2
• Synonyms：
  Mal-NH-PEG4-CH2CH2COONHS
  Maleimide-PEG4-NHS ester
  Mal-amido-PEG4-NHS
  Maleimide-PEG4-succinimidyl ester
  
• Purity：
  ≥95%
• MF：
  C₂₂H₃₁N₃O₁₁
• MW：
  513.5
• 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.

Mal-NH-PEG4-NHS (Mal-amido-PEG4 NHS ester) linker contains a maleimide group and an NHS propionate. The PEG spacer increases the aqueous solubility of the resulting compound. The NHS propionate can be used to conjugate with amine (NH2) containing proteins, oligonucleotides, and other molecules. The maleimide group reacts specifically with a thiol group to form a covalent C-S bond, enabling the bioconjugation with a thiol bearing molecules.

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