ChemicalBook > CAS DataBase List > Octadecyltrimethoxysilane

Octadecyltrimethoxysilane

Product Name
Octadecyltrimethoxysilane
CAS No.
3069-42-9
Chemical Name
Octadecyltrimethoxysilane
Synonyms
TriMethoxy;TRIMETHOXYOCTADECYLSILANE;DK261;DK729;OctadecyltriMethoxys;STEARYLTRIMETHOXYSILANE;Octadecyltrimethoxysilan;trimethoxyoctadecyl-silan;OCTADECYLTRIMETHOXYSILANE;Trimethoxysilyloctadecane
CBNumber
CB3403134
Molecular Formula
C21H46O3Si
Formula Weight
374.67
MOL File
3069-42-9.mol
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Octadecyltrimethoxysilane Property

Melting point:
16-17 °C(lit.)
Boiling point:
170 °C (0.1 mmHg)
Density 
0.883 g/mL at 25 °C(lit.)
vapor pressure 
0.001Pa at 25℃
refractive index 
n20/D 1.439(lit.)
Flash point:
284 °F
storage temp. 
Inert atmosphere,Room Temperature
solubility 
Chloroform (Slightly)
form 
liquid
color 
Colourless
Specific Gravity
0.883
Water Solubility 
190-437000ng/L at 20℃
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
BRN 
5791830
Stability:
Stable. Incompatible with strong oxidizing agents. Moisture sensitive.
InChIKey
SLYCYWCVSGPDFR-UHFFFAOYSA-N
LogP
6
CAS DataBase Reference
3069-42-9(CAS DataBase Reference)
NIST Chemistry Reference
Octadecyltrimethoxysilane(3069-42-9)
EPA Substance Registry System
Silane, trimethoxyoctadecyl- (3069-42-9)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
1
10-21
TSCA 
Yes
HS Code 
29319090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
376213
Product name
Trimethoxy(octadecyl)silane
Purity
technical grade, 90%
Packaging
5ml
Price
$51.8
Updated
2024/03/01
Sigma-Aldrich
Product number
376213
Product name
Trimethoxy(octadecyl)silane
Purity
technical grade, 90%
Packaging
25ml
Price
$168
Updated
2024/03/01
TCI Chemical
Product number
O0256
Product name
Octadecyltrimethoxysilane
Purity
>85.0%(GC)
Packaging
25mL
Price
$96
Updated
2024/03/01
Usbiological
Product number
291644
Product name
Trimethoxy
Packaging
5g
Price
$345
Updated
2021/12/16
TRC
Product number
O148538
Product name
Octadecyltrimethoxysilane
Packaging
250mg
Price
$45
Updated
2021/12/16
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Octadecyltrimethoxysilane Chemical Properties,Usage,Production

Chemical Properties

Colorless transparent liquid

Uses

OTS is used for the development of self assembled monolayers(SAMs). OTS is also used to modify the silica dielectric surface in organic field effect transistors.

Uses

For preparing hydrophobic coatings and self-assembled monolayers.

General Description

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, modifying silica resulted in an increased charge carrier mobility for a variety of vacuum deposited and solution cast organic semiconductors.

Octadecyltrimethoxysilane Preparation Products And Raw materials

Raw materials

Preparation Products

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Octadecyltrimethoxysilane Suppliers

Hubei kefule Material Technology Co., Ltd
Tel
027-84459282 13720265353
Email
zhou@cfmats.com
Country
China
ProdList
881
Advantage
58
Weihai Zhaochuan Biotechnology Co., Ltd.
Tel
13863193635
Fax
0631-5295078
Email
53702483@qq.com
Country
China
ProdList
404
Advantage
58
Nanjing Quanxi New Materials Co., Ltd
Tel
025-025-58183162-0 18021540488
Email
1094405027@qq.com
Country
China
ProdList
59
Advantage
58
Shanghai Boyle Chemical Co., Ltd.
Tel
021-50182298 021-50180596
Fax
+86-21-57758967
Email
sales@boylechem.com
Country
China
ProdList
2208
Advantage
55
Tianjin Zhongxin Chemtech Co., Ltd.
Tel
022-66880623
Fax
86(0)22-66880086
Email
sales@tjzxchem.com
Country
China
ProdList
613
Advantage
60
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Beijing HwrkChemical Technology Co., Ltd
Tel
010-89508211 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
8415
Advantage
55
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View Lastest Price from Octadecyltrimethoxysilane manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
Octadecyltrimethoxysilane 3069-42-9
Price
US $30.00-10.00/KG
Min. Order
50KG
Purity
99%
Supply Ability
500000kg
Release date
2024-11-04
Hubei Changfu Chemical Co., Ltd.
Product
n-Octadecyltrimethoxysilane 3069-42-9
Price
US $0.00-0.00/kg
Min. Order
0.1kg
Purity
96%
Supply Ability
200tons
Release date
2023-12-25
Shandong Deshang Chemical Co., Ltd.
Product
Octadecyltrimethoxysilane 3069-42-9
Price
US $10.00-7.00/kg
Min. Order
1kg
Purity
99.99%
Supply Ability
10 tons
Release date
2024-06-13

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  • CH3CH217SiOCH33
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  • Organometallic Reagents
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  • Silane Coupling Agents (Intermediates)
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  • Si (Classes of Silicon Compounds)
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