3-(2-Aminoethylamino)propyl]trimethoxysilane

• CAT Number: R026660
• CAS Number: 1760-24-3
• Molecular Formula: C8H22N2O3Si
• Molecular Weight: 222.36
• Purity: ≥95%
• Synonyms: 1,2-Ethanediamine, N-[3-(trimethoxysilyl)propyl]- (9CI)?Ethylenediamine, N-[3-(trimethoxysilyl)propyl]- (6CI,7CI,8CI)?(2-Aminoethyl)(3-(trimethoxysilyl)propyl)amine?(Trimethoxysilylpropyl)ethylenediamine?(β-Aminoethyl)-γ-aminopropyltrimethoxysilane?(
• Storage: -20°C
• IUPAC Name: N'-(3-trimethoxysilylpropyl)ethane-1,2-diamine
• InChI: InChI=1S/C8H22N2O3Si/c1-11-14(12-2,13-3)8-4-6-10-7-5-9/h10H,4-9H2,1-3H3
• InChIKey: PHQOGHDTIVQXHL-UHFFFAOYSA-N
• SMILES: CO[Si](CCCNCCN)(OC)OC

3-(2-Aminoethylamino)propyltrimethoxysilane (CAT: R026660) is a bifunctional silane coupling agent featuring a trimethoxysilane group and a diamine-functional alkyl chain. The trimethoxysilane moiety reacts readily with hydroxylated surfaces such as glass, silica, and metal oxides, forming stable covalent bonds. The terminal amine groups enable further conjugation with biomolecules, polymers, or crosslinking agents. AEAPTMS is widely used in surface modification, biomolecule immobilization, and nanomaterial functionalization. It enhances adhesion, improves compatibility between inorganic and organic phases, and serves as a linker in biosensors, sol-gel coatings, and advanced composites.