m-PEG3-Aminooxy

• CAT Number: I014053
• CAS Number: 248275-10-7
• Molecular Formula: C7H17NO4
• Molecular Weight: 179.21
• Purity: ≥95%
• Synonyms: O-[2-[2-(2-methoxyethoxy)ethoxy]ethyl]hydroxylamine
• InChI: InChI=1S/C7H17NO4/c1-9-2-3-10-4-5-11-6-7-12-8/h2-8H2,1H3
• InChIKey: UPZRLQLRXOQKOM-UHFFFAOYSA-N
• SMILES: COCCOCCOCCON

m-PEG3-Aminooxy（Cat No.:I014053）is a monofunctional polyethylene glycol derivative featuring an aminooxy group attached to a three-unit PEG chain. The aminooxy functionality enables chemoselective oxime or hydrazone ligation with aldehydes and ketones, producing stable linkages under mild reaction conditions. The PEG3 spacer enhances water solubility, flexibility, and biocompatibility while reducing steric hindrance, which improves conjugation efficiency with biomolecules or polymers. This compact, hydrophilic linker is widely applied in peptide synthesis, bioconjugation, and drug discovery, supporting the development of multifunctional biomolecules, targeted therapeutic systems, and advanced diagnostic or biomaterial platforms.