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376213

Sigma-Aldrich

Trimethoxy(octadecyl)silane

technical grade

Sinónimos:

Octadecyltrimethoxysilane

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5 ML
$53.70
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$165.30

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5 ML
$53.70
25 ML
$165.30

About This Item

Fórmula lineal:
CH3(CH2)17Si(OCH3)3
Número de CAS:
3069-42-9
Peso molecular:
374.67
Beilstein:
5791830
Número CE:
221-339-2
Número MDL:
MFCD00043060
Código UNSPSC:
12352103
ID de la sustancia en PubChem:
24863428
NACRES:
NA.23

$53.70

Disponible para envío el17 de abril de 2025Detalles

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grado

technical grade

Nivel de calidad

100

Formulario

liquid

índice de refracción

n20/D 1.439 (lit.)

mp

16-17 °C (lit.)

densidad

0.883 g/mL at 25 °C (lit.)

cadena SMILES

CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC

InChI

1S/C21H46O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25(22-2,23-3)24-4/h5-21H2,1-4H3

Clave InChI

SLYCYWCVSGPDFR-UHFFFAOYSA-N

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Descripción general

Trimethoxy(octadecyl)silane (OTMS) is an alkyl silane that functionalizes a variety of nanoparticle surfaces and facilitates a hydrophobic coating with a high-water contact angle and low surface energy.[1][2]
Trimethoxy(octadecyl)silane (OTS) is an important alkylsilane that can form strong covalent bonds with silicon oxide and serves as a potential lubricant for micro electro mechanical systems (MEMS). OTS is largely used for surface chemical modification,[3] modifying silica resulted in an increased charge carrier mobility for a variety of vacuum deposited and solution cast organic semiconductors.

Aplicación

Magnetic nanoparticles (Fe2O3) can be surface modified with OTMS. It forms a sorbent for the magnetic solid-phase extraction (MSPE) of endocrine disruptors (organochlorine pesticides) from milk samples.[4] It may form a corrosion protective coating on AZ31 magnesium alloy that finds potential application in automotive industry.[5] It may also be used to form a composite with fly ash that can be coated to achieve a superhydrophobic and UV-protected cotton fabric.[6]
OTS is used for the development of self assembled monolayers(SAMs).[3] OTS is also used to modify the silica dielectric surface in organic field effect transistors.

Código de clase de almacenamiento

10 - Combustible liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

284.0 °F - closed cup

Punto de inflamabilidad (°C)

140 °C - closed cup

Equipo de protección personal

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Certificados de análisis (COA)

Lot/Batch Number
MKCV5683
MKCW8416
MKCT1401
MKCR9718
MKCL0352

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Noncovalent assembly of reduced graphene oxide and alkyl-grafted mesoporous silica: an effective drug carrier for near-infrared light-responsive controlled drug release.
He D, et al.
Journal of Material Chemistry B: Materials for Biology and Medicine, 3(27), 5588-5594 (2015)
Koji Mitamura et al.
The journal of physical chemistry. B, 111(30), 8891-8898 (2007-07-13)
Hydrophobic gold nanorods were fabricated from hydrophilic gold nanorods coated with hexadecyltrimethylammonium bromide by treating with mercaptopropyltrimethoxysilane (MPS) and subsequently octadecyltrimethoxysilane (ODS). The fabrication of the hydrophobic shell went through the process of (1) binding MPS onto the nanorods, (2)
Sun Hong Kim et al.
ACS nano, 13(6), 6531-6539 (2019-05-11)
Both self-healable conductors and stretchable conductors have been previously reported. However, it is still difficult to simultaneously achieve high stretchability, high conductivity, and self-healability. Here, we observed an intriguing phenomenon, termed "electrical self-boosting", which enables reconstructing of electrically percolative pathways
Rodrigo Brambilla et al.
Analytical and bioanalytical chemistry, 391(7), 2673-2681 (2008-05-28)
A series of octadecylsilane-modified silicas were prepared by sol-gel and grafting methods. Carbon contents and octadecyl chain conformations were shown to depend on the preparative route. Grafting engenders a low carbon content and a liquid-like chain conformation, while the sol-gel
Superhydrophobicity, UV protection and oil/water separation properties of fly ash/Trimethoxy (octadecyl) silane coated cotton fabrics.
Khan MZ, et al.
Carbohydrate Polymers, 202(2-3), 571-580 (2018)
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

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    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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