CAS 3069-40-7

Octyltrimethoxysilane

Description:

Octyltrimethoxysilane, with the CAS number 3069-40-7, is an organosilane compound characterized by its long hydrophobic octyl chain and three methoxy groups attached to a silicon atom. This structure imparts unique properties, making it useful as a coupling agent, surface modifier, and adhesion promoter in various applications, including coatings, sealants, and composites. The octyl group enhances hydrophobicity, improving water resistance and compatibility with organic materials. Octyltrimethoxysilane can undergo hydrolysis in the presence of moisture, leading to the formation of silanol groups that can bond with silicate surfaces, promoting adhesion. It is typically a clear, colorless liquid with a low viscosity, and it is soluble in organic solvents. Safety considerations include handling it in well-ventilated areas and using appropriate personal protective equipment, as it may cause irritation upon contact with skin or eyes. Overall, its unique chemical structure and properties make it valuable in enhancing the performance of various materials in industrial applications.

Formula: C₁₁H₂₆O₃Si

InChI: InChI=1S/C11H26O3Si/c1-5-6-7-8-9-10-11-15(12-2,13-3)14-4/h5-11H2,1-4H3

InChI key: InChIKey=NMEPHPOFYLLFTK-UHFFFAOYSA-N

SMILES: [Si](CCCCCCCC)(OC)(OC)OC

Synonyms:

• 1-(Trimethoxysilyl)octane
• Cg-N 813
• Dynasylan OCTMO
• Jh-N 318
• Kbm 3083
• Octyltrimethoxy silane
• Octyltrimethoxysilane
• Si 108
• Sil-Act ATS 100LV
• Sil-Act ATS 22
• Sil-Act ATS 42A
• Sil-Act ATS 42NS
• Silan 108
• Silane, trimethoxyoctyl-
• Sio 6715.5
• Trimethoxy(Octyl)Silane
• Trimethoxyoctylsilane
• Xc 95-738

Trimethoxy-n-octylsilane

CAS: 3069-40-7

Formula: C₁₁H₂₆O₃Si

Purity: >96.0%(GC)

Color and Shape: Colorless to Almost colorless clear liquid

Molecular weight: 234.41

Ref: 3B-T2875

n-Octyltrimethoxysilane, 97+%

CAS: 3069-40-7

n-Octyltrimethoxysilane is used in medicine field, electronic industry and polymer material. It is also used as surface modifier. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy b

Formula: C₁₁H₂₆O₃Si

Purity: 97+%

Color and Shape: Clear colorless to yellow, Liquid

Molecular weight: 234.41

Ref: 02-042698

Trimethoxy(octyl)silane

CAS: 3069-40-7

Formula: C₁₁H₂₆O₃Si

Purity: 96%

Color and Shape: Liquid

Molecular weight: 234.4078

Ref: IN-DA003V35

Trimethoxy(octyl)silane

CAS: 3069-40-7

Trimethoxy(octyl)silane

Purity: 97%

Molecular weight: 234.41g/mol

Ref: 54-OR96828

n-Octyltrimethoxysilane

CAS: 3069-40-7

S12800 - n-Octyltrimethoxysilane

Formula: C₁₁H₂₆O₃Si

Purity: 95%

Color and Shape: Liquid, Clear Liquid

Molecular weight: 234.411

Ref: 10-S12800

Trimethoxy(octyl)silane

Controlled Product

CAS: 3069-40-7

Applications Trimethoxy(octyl)silane is a surface modifier used as additive for polymer encapsulation and for controlled drug delivery.
References Erdem, B., et al.: Langmuir, 17, 2664 (2001); Doadrio, J., et al.: J. Mater. Chem., 16, 462 (2006);

Formula: C₁₁H₂₆O₃Si

Color and Shape: Neat

Molecular weight: 234.408

Ref: TR-T773450

n-OCTYLTRIMETHOXYSILANE

CAS: 3069-40-7

Alkyl Silane - Conventional Surface Bonding
Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.
n-Octyltrimethoxysilane; Trimethoxysilyloctane
Viscosity: 1.0 cStVapor pressure, 75 °: 0.1 mmTreatment for particles used in non-aqueous liquid dispersionsTrialkoxy silane

Formula: C₁₁H₂₆O₃Si

Purity: 97%

Color and Shape: Straw Liquid

Molecular weight: 234.41

Ref: 3H-SIO6715.5