Tri(Amino-PEG3-amide)-amine

• CAT Number: I045935
• CAS Number: 2523025-40-1
• Molecular Formula: C33H69N7O12
• Molecular Weight: 755.94
• Purity: ≥95%
• Synonyms: 3-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]-N-[2-[bis[2-[3-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]propanoylamino]ethyl]amino]ethyl]propanamide
• InChI: InChI=1S/C33H69N7O12/c34-4-16-47-22-28-50-25-19-44-13-1-31(41)37-7-10-40(11-8-38-32(42)2-14-45-20-26-51-29-23-48-17-5-35)12-9-39-33(43)3-15-46-21-27-52-30-24-49-18-6-36/h1-30,34-36H2,(H,37,41)(H,38,42)(H,39,43)
• InChIKey: IQSJMACFJXJKGK-UHFFFAOYSA-N
• SMILES: C(COCCOCCOCCN)C(=O)NCCN(CCNC(=O)CCOCCOCCOCCN)CCNC(=O)CCOCCOCCOCCN

Tri(Amino-PEG3-amide)-amine（Cat No.:I045935）is a trifunctional PEG-based linker built on a central amine core connected to three PEG3-amide arms, each terminating in a primary amine. These free amines provide versatile reactive sites for coupling with carboxylic acids, activated esters, or isocyanates, enabling efficient multivalent conjugation. The PEG3-amide spacers improve hydrophilicity, impart flexibility, and reduce steric hindrance, supporting high-yield coupling in biological and material systems. This reagent is widely applied in drug delivery, dendrimer synthesis, biomaterials modification, and chemical biology projects that require controlled multivalency and stable amide-linked architectures.