• CAS No.：
  138529-46-1
• Synonyms：
  Biotin-PEG2-amine
  N-(8-Amino-3,6-dioxaoctanyl)biotinamide
  
• Purity：
  ≥95%
• MF：
  C₁₆H₃₀N₄O₄S
• MW：
  374.5
• 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.

Biotin-PEG2-NH2 (Biotin-PEG2-Amine) is a biotinylation reagent featuring a biotin group connected to an amine through a two-unit PEG spacer. This hydrophilic PEG linker enhances the solubility of biotin-labeled proteins in aqueous environments, offering advantages over traditional hydrocarbon-based linkers. The primary amine readily conjugates to carboxyl groups on biomolecules (such as carboxy termini, aspartate, or glutamate residues) using EDC, forming stable amide bonds. This reagent is ideal for efficient and reliable biotin tagging in applications requiring aqueous compatibility and strong biotin-avidin interactions.

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