NH-bis-PEG4

• CAT Number: I015916
• CAS Number: 63721-14-2
• Molecular Formula: C16H35NO8
• Molecular Weight: 369.45
• Purity: ≥95%
• Synonyms: 2-[2-[2-[2-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethylamino]ethoxy]ethoxy]ethoxy]ethanol
• InChI: InChI=1S/C16H35NO8/c18-3-7-22-11-15-24-13-9-20-5-1-17-2-6-21-10-14-25-16-12-23-8-4-19/h17-19H,1-16H2
• InChIKey: MTDAOFBRUZCGHZ-UHFFFAOYSA-N
• SMILES: C(COCCOCCOCCO)NCCOCCOCCOCCO

NH-bis-PEG4（Cat No.:I015916）is a bifunctional polyethylene glycol derivative with a central amine core substituted by two PEG₄ chains. The PEG arms impart excellent hydrophilicity, flexibility, and biocompatibility, while reducing steric hindrance and nonspecific interactions. With its neutral, hydrophilic structure, this molecule functions as a versatile spacer or scaffold in bioconjugation, materials science, and pharmaceutical research. It is particularly useful for surface modification, hydrogel preparation, nanoparticle stabilization, and drug delivery systems, where PEGylation improves solubility, stability, and circulation properties of biomolecular assemblies and advanced functional materials.