CAS 7399-00-0

Octadecyltriethoxysilane

Description:

Octadecyltriethoxysilane, with the CAS number 7399-00-0, is an organosilicon compound characterized by its long hydrophobic alkyl chain and triethoxysilane functional groups. This compound typically appears as a colorless to pale yellow liquid and is known for its ability to form self-assembled monolayers on various substrates, enhancing surface properties such as hydrophobicity and chemical stability. Its structure consists of an octadecyl group, which imparts significant hydrophobic characteristics, making it useful in applications such as surface modification, coatings, and as a coupling agent in composites. Octadecyltriethoxysilane is also utilized in the production of silane-based materials, where it can improve adhesion and compatibility between organic and inorganic phases. Additionally, it can act as a precursor in the synthesis of silica-based materials, contributing to the development of advanced materials with tailored properties. Safety precautions should be observed when handling this compound, as it may pose health risks if inhaled or ingested.

Formula: C₂₄H₅₂O₃Si

InChI: InChI=1S/C24H52O3Si/c1-5-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-28(25-6-2,26-7-3)27-8-4/h5-24H2,1-4H3

InChI key: InChIKey=FZMJEGJVKFTGMU-UHFFFAOYSA-N

SMILES: [Si](CCCCCCCCCCCCCCCCCC)(OCC)(OCC)OCC

Synonyms:

• Ls 6970
• Octadecyltriethoxysilane
• P 09775
• S 12325
• Si 118
• Silane, triethoxyoctadecyl-
• Sio 6645.0
• Stearyltriethoxysilane
• Triethoxyoctadecylsilane
• ODES

Octadecyltriethoxysilane

CAS: 7399-00-0

Formula: C₂₄H₅₂O₃Si

Purity: >85.0%(GC)

Color and Shape: White or Colorless to Light yellow powder to lump to clear liquid

Molecular weight: 416.76

Ref: 3B-O0165

Octadecyltriethoxysilane, 98%, n-isomer 85% min

CAS: 7399-00-0

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 brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

Formula: CH₃(CH₂)₁₇Si(OCH₂CH₃)₃

Purity: 85%

Color and Shape: Liquid, Clear colorless

Molecular weight: 416.77

Ref: 02-L06366

Triethoxyoctadecylsilane

CAS: 7399-00-0

Formula: C₂₄H₅₂O₃Si

Purity: 97%

Color and Shape: Liquid

Molecular weight: 416.7534

Ref: IN-DA003V1E

Octadecyltriethoxysilane

CAS: 7399-00-0

Octadecyltriethoxysilane

Purity: 98%

Molecular weight: 416.75g/mol

Ref: 54-OR1014534

Octadecyltriethoxysilane, 95%

CAS: 7399-00-0

S12300 - Octadecyltriethoxysilane, 95%

Formula: C₂₄H₅₂O₃Si

Purity: 95%

Color and Shape: Liquid, Clear

Molecular weight: 416.762

Ref: 10-S12300

Octadecyltriethoxysilane

Controlled Product

CAS: 7399-00-0

Applications OCTADECYLTRIETHOXYSILANE (cas# 7399-00-0) is a useful research chemical.

Formula: C₂₄H₅₂O₃Si

Purity: >90%

Color and Shape: Neat

Molecular weight: 416.753

Ref: TR-O148493

Gelest Sericite SS

CAS: 12001-26-2, 7399-00-0

Color and Shape: White Solid

Ref: 3H-SAA-SSA

Gelest Red Iron Oxide SS

CAS: 1309-37-1, 7399-00-0

Color and Shape: Red To Reddish Brown Solid

Ref: 3H-RIA-SSA

Gelest Yellow Iron Oxide SS

CAS: 51274-00-1, 7399-00-0

Color and Shape: Yellow Solid

Ref: 3H-YIA-SSA

Gelest Black Iron Oxide SS

CAS: 1317-61-9, 7399-00-0

Color and Shape: Black Solid

Ref: 3H-BIA-SSA

Gelest Talc SS

CAS: 1318-59-8, 14807-96-6, 7399-00-0

Color and Shape: White Solid

Ref: 3H-TA7-SSA

Gelest Titanium Dioxide SS

CAS: 13463-67-7, 7399-00-0

Color and Shape: White Solid

Ref: 3H-WIA-SSA

Ω-BUTYLPOLY(DIMETHYLSILOXANYL)ETHYLTRIETHOXYSILANE, tech

CAS: 7399-00-0

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.
ω-Butylpoly(dimethylsiloxanyl)ethyltriethoxysilane; α-Butyl-ω-triethoxysilylethyl terminated polydimethylsiloxane
5-8 (Me2SiO)Hydrophobic surface treatment

Formula: C₂₄H₅₂O₃Si

Color and Shape: Straw Liquid

Molecular weight: 416.76

Ref: 3H-SIB1974.2