440213
Triethoxy(octyl)silane
97%
Synonym(s):
Octyltriethoxysilane
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About This Item
Linear Formula:
CH3(CH2)7Si(OC2H5)3
CAS Number:
Molecular Weight:
276.49
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
EC Number:
220-941-2
Beilstein/REAXYS Number:
2325287
MDL number:
InChI key
MSRJTTSHWYDFIU-UHFFFAOYSA-N
InChI
1S/C14H32O3Si/c1-5-9-10-11-12-13-14-18(15-6-2,16-7-3)17-8-4/h5-14H2,1-4H3
SMILES string
CCCCCCCC[Si](OCC)(OCC)OCC
assay
97%
form
liquid
Quality Level
bp
84-85 °C/0.5 mmHg (lit.)
density
0.88 g/mL at 25 °C (lit.)
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General description
Triethoxy(octyl)silane (OCTEO) is a high-reactivity organosilane coupling agent designed for the molecular-level modification of surface
Its molecular structure features an 8-carbon octyl chain and three hydrolytically sensitive ethoxy groups. This architecture ensures the formation of stable, covalent siloxane bonds with inorganic substrates while providing a low-energy, hydrophobic surface with water contact angles often exceeding 150°.
In the realm of nanoelectronics, it serves as an essential "hydrophobization" agent, reducing non-specific binding and preventing water-induced charge leakage in sensitive micro-electronic components.
Refined to a 97% high-purity specification, this grade is optimized for consistency in research and industrial processes requiring reliable, reproducible surface functionalization for point-of-care (POC) diagnostics and molecular-scale circuitry.
Its molecular structure features an 8-carbon octyl chain and three hydrolytically sensitive ethoxy groups. This architecture ensures the formation of stable, covalent siloxane bonds with inorganic substrates while providing a low-energy, hydrophobic surface with water contact angles often exceeding 150°.
In the realm of nanoelectronics, it serves as an essential "hydrophobization" agent, reducing non-specific binding and preventing water-induced charge leakage in sensitive micro-electronic components.
Refined to a 97% high-purity specification, this grade is optimized for consistency in research and industrial processes requiring reliable, reproducible surface functionalization for point-of-care (POC) diagnostics and molecular-scale circuitry.
Application
As a high-performance alkoxysilane, OCTEO is used to engineer precise hydrophobic interphases and moisture-resistant layers in advanced diagnostic and electronic systems.
Semiconductor Passivation: Utilized to form dense, moisture-resistant Self-Assembled Monolayers (SAMs) on inorganic substrates like silicon and glass. These layers provide critical insulation and protection for semiconductor devices against environmental degradation.
Gas-Phase Biosensing: Employed in the fabrication of low-cost colorimetric sensor arrays. It stabilizes the porosity of sensor substrates, enabling rapid color changes for the real-time detection of toxic gases.
Biomolecule Immobilization: Used in the production of organically modified silane (Ormosil) nanoparticles. These nanostructures can encapsulate enzymes like horseradish peroxidase (HRP), preserving their activity for high-sensitivity biochemical assays.
Micro-patterning & Adhesion: Acts as an adhesion promoter between organic resins and inorganic micro-electrode arrays. Its ability to modulate surface energy is critical for the reliable performance of printed circuit boards (PCBs) and flexible bio-interfaces.
Semiconductor Passivation: Utilized to form dense, moisture-resistant Self-Assembled Monolayers (SAMs) on inorganic substrates like silicon and glass. These layers provide critical insulation and protection for semiconductor devices against environmental degradation.
Gas-Phase Biosensing: Employed in the fabrication of low-cost colorimetric sensor arrays. It stabilizes the porosity of sensor substrates, enabling rapid color changes for the real-time detection of toxic gases.
Biomolecule Immobilization: Used in the production of organically modified silane (Ormosil) nanoparticles. These nanostructures can encapsulate enzymes like horseradish peroxidase (HRP), preserving their activity for high-sensitivity biochemical assays.
Micro-patterning & Adhesion: Acts as an adhesion promoter between organic resins and inorganic micro-electrode arrays. Its ability to modulate surface energy is critical for the reliable performance of printed circuit boards (PCBs) and flexible bio-interfaces.
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Warning
hcodes
Hazard Classifications
Skin Irrit. 2
Storage Class
10 - Combustible liquids
wgk
WGK 1
flash_point_f
212.0 °F - closed cup
flash_point_c
100 °C - closed cup
ppe
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
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Macromolecules can phase separate to form liquid condensates, which are emerging as critical compartments in fields as diverse as intracellular organization and soft materials design. A myriad of macromolecules, including the protein FUS, form condensates which behave as isotropic liquids.
A colorimetric sensor array of porous pigments.
Lim H, et al.
Analyst, 134(12), 2453-2457 (2009)
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