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n-Octadecyltrichlorosilane, 95%, cont. 5-10% branched isomers
n-Octadecyltrichlorosilane, 95%, cont. 5-10% branched isomers
n-Octadecyltrichlorosilane, 95%, cont. 5-10% branched isomers
Thermo Scientific Chemicals

n-Octadecyltrichlorosilane, 95%, cont. 5-10% branched isomers

CAS: 112-04-9 | C18H37Cl3Si | 387.929 g/mol
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Catalog number A15732.30
also known as A15732-30
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158.65
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Quantity:
250 g
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Price (USD)
158.65
Online Exclusive
176.00
Save 17.35 (10%)
Each
Chemical Identifiers
CAS112-04-9
IUPAC Nametrichloro(octadecyl)silane
Molecular FormulaC18H37Cl3Si
InChI KeyPYJJCSYBSYXGQQ-UHFFFAOYSA-N
SMILESCCCCCCCCCCCCCCCCCC[Si](Cl)(Cl)Cl
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SpecificationsSpecification SheetSpecification Sheet
Appearance (Color)Colorless to pale yellow to yellow-brown or pale brown
FormClear to slightly hazy liquid
Assay (GC)≥84.5% (main component)
CommentDeposited material dissolves/melts on warming leaving a slight precipitate
CommentPartial crystallization occurs at lower temperatures
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n-Octadecyltrichlorosilane is used in semiconductor industry to form self-assembled monolayer thin films on silicon dioxide substrates. Used in molecular electronics, as thin insulating gates in Metal-Insulator-Semiconductor Field-Effect Transistors. It is also used in platinum catalyzed synthesis.

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 Scientific Chemicals.

Applications
n-Octadecyltrichlorosilane is used in semiconductor industry to form self-assembled monolayer thin films on silicon dioxide substrates. Used in molecular electronics, as thin insulating gates in Metal-Insulator-Semiconductor Field-Effect Transistors. It is also used in platinum catalyzed synthesis.

Solubility
Decomposes in water.

Notes
Moisture sensitive. Store in cool dry place in tightly closed container. Store under dry inert gas. Keep away from water/moisture.
RUO – Research Use Only

General References:

  1. Sung, Myung M.; G. Jonathan Kluth; and Roya Maboudian. Formation of alkylsiloxane self-assembled monolayers on Si3N4. J. Vac. Sci. Technol. A. 1999, 17 (2), 1100-1106.
  2. A. N. Parikh; M. A. Schivley; E. Koo; K. Seshadri; D. Aurentz; K. Mueller; and D. L. Allara. n-Alkylsiloxanes: From Single Monolayers to Layered Crystals. The Formation of Crystalline Polymers from the Hydrolysis of n-Octadecyltrichlorosilane. J. Am. Chem. Soc. 1997, 119 (13), 3135-3143.