Tri(Amino-PEG4-amide)-amine

• CAT Number: I045934
• Molecular Formula: C39H81N7O15
• Molecular Weight: 888.10
• Purity: ≥95%
• Synonyms: 3-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]-N-[2-[bis[2-[3-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]propanoylamino]ethyl]amino]ethyl]propanamide
• InChI: InChI=1S/C39H81N7O15/c40-4-16-53-22-28-59-34-31-56-25-19-50-13-1-37(47)43-7-10-46(11-8-44-38(48)2-14-51-20-26-57-32-35-60-29-23-54-17-5-41)12-9-45-39(49)3-15-52-21-27-58-33-36-61-30-24-55-18-6-42/h1-36,40-42H2,(H,43,47)(H,44,48)(H,45,49)
• InChIKey: YGEMWQLDBQAVBU-UHFFFAOYSA-N
• SMILES: C(COCCOCCOCCOCCN)C(=O)NCCN(CCNC(=O)CCOCCOCCOCCOCCN)CCNC(=O)CCOCCOCCOCCOCCN

Tri(Amino-PEG4-amide)-amine（Cat No.:I045934）is a trifunctional PEG-based linker composed of a central amine core attached to three PEG4-amide arms, each terminating with a free primary amine. The multiple amine groups provide versatile handles for conjugation with carboxylic acids, activated esters, or isocyanates, enabling the construction of multivalent biomolecule assemblies. The PEG4-amide spacers enhance solubility, impart flexibility, and minimize steric hindrance, ensuring efficient coupling in complex biological or material systems. This reagent is highly useful for drug conjugates, dendrimer synthesis, biomaterials engineering, and advanced chemical biology applications requiring controlled multivalency.