• CAS No.：
  252881-74-6
• Synonyms：
  Amino-PEG3-COOtBu
  H2N-PEG3-tBu
  H2N-PEG3-CH2CH2-t-butylester
  Amine PEG3-t-butyl ester
  tert-Butyl 12-amino-4,7,10-trioxadodecanoate
  12-Amino-4,7,10-trioxadodecanoic acid tert-butyl ester
  tert-Butyl 3-(2-(2-(2-aminoethoxyl)ethoxy)ethoxy)propanoate
  3-[2-[2-(2
  
• Purity：
  ≥95%
• MF：
  C₁₃H₂₇NO₅
• MW：
  277.4
• 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.

Monodisperse Amino-PEG3-t-butyl ester (NH2-PEG3-CH2CH2COOtBu) is a heterobifunctional PEG linker containing an amino (NH2) group with a t-butyl protected carboxyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be deprotected under acidic conditions.

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