• CAS No.：
  359860-27-8
• Synonyms：
  N-BIOTINYL-3,6,9-TRIOXAUNDECANE-1,11-DIAMINE
  (+)-BIOTIN-PEG3-AMINE
  (+)-Biotin-PEG3-amine
  (+)-Biotin-PEG3-CH2CH2NH2
  (+)-Biotinyl3,6,9-trioxaundecanediamine
  N-(2-(2-(2-(2-Aminoethoxy)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidaz
  
• Purity：
  ≥95%
• MF：
  C₁₈H₃₄N₄O₅S
• MW：
  418.6
• 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.

Biotin-PEG3-NH2 (Biotin-PEG3-Amine) is a versatile biotinylation reagent featuring a biotin group linked to an amine via a three-unit PEG spacer. The amine group readily reacts with NHS esters or carboxylic acids in the presence of coupling agents like EDC or HATU, facilitating stable bioconjugation. The PEG3 spacer enhances solubility in aqueous environments and reduces steric hindrance, optimizing binding to avidin and streptavidin molecules. This reagent is ideal for labeling and tagging in applications requiring reliable biotin-avidin interactions with minimized interference.

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