Amino-PEG12-amine

• CAT Number: I016277
• CAS Number: 361543-12-6
• Molecular Formula: C26H56N2O12
• Molecular Weight: 588.73
• Purity: ≥95%
• Synonyms: 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanamine
• InChI: InChI=1S/C26H56N2O12/c27-1-3-29-5-7-31-9-11-33-13-15-35-17-19-37-21-23-39-25-26-40-24-22-38-20-18-36-16-14-34-12-10-32-8-6-30-4-2-28/h1-28H2
• InChIKey: LBBOTXXNKBSUJN-UHFFFAOYSA-N
• SMILES: C(COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN)N

Amino-PEG12-amine(CAT: I016277) is a linear, bifunctional polyethylene glycol (PEG) linker containing primary amine groups at both ends of a 12-unit PEG chain. The extended PEG spacer provides excellent flexibility, hydrophilicity, and enhanced solubility in aqueous and organic systems, while reducing steric hindrance during conjugation. Its terminal amine groups readily undergo coupling with activated esters, carboxylic acids, or other reactive moieties, enabling stable amide bond formation. This versatile reagent is widely applied in bioconjugation, drug delivery, surface modification, and polymer chemistry, where long, flexible spacers are required to improve biomolecule stability, reduce aggregation, and optimize functional performance.