• CAS No.：
  108466-89-3
• Synonyms：
  t-Boc-NH-amido-PEG2-CH2CO2H
  Boc-AEEA-OH
  Boc-N-amido-PEG2-CH2COOH
  t-boc-N-amido-PEG2-acetic acid
  8-tert-butyloxycarbonylamino-3,6-dioxaoctanoic acid
  2,2-Dimethyl-4-oxo-3,8,11-trioxa-5-azatridecan-13-oic acid
  2-[2-[2-(Boc-amino)ethoxy]ethoxy]acetic acid
  
• Purity：
  ≥95%
• MF：
  C₁₁H₂₁NO₆
• MW：
  263.3
• 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.

Boc-NH-PEG2-CH2COOH is a heterobifunctional, PEGylated crosslinker with a Boc-protected amine at one end and a carboxyl group at the opposite end. The inclusion of a hydrophilic PEG linker enhances its solubility in various biological applications. This compound finds utility in bioconjugation processes and serves as a  building block for synthesizing small molecules, as well as conjugates involving small molecules and/or biomolecules. It is particularly valuable in the creation of tool compounds used in chemical biology and medicinal chemistry that require ligation.

Examples of applications include its synthetic incorporation into antibody-drug conjugates or proteolysis-targeting chimeras (PROTAC molecules) for targeted protein degradation. And it is also a semaglutide side chain. Other semaglutide side chains includes NH2-PEG2-CH2COOH, Fmoc-NH-PEG2-CH2COOH and CH2COOH-PEG2-NH2.HCl.