Chlorodimethyloctadecylsilane

Product Name: Chlorodimethyloctadecylsilane
CAS No.: 18643-08-8
Chemical Name: Chlorodimethyloctadecylsilane
Synonyms: DK193;DK642;CD5636;SILANE ODM2;STEARYLDIMETHYLCHLOROSILANE;DIMETHYLOCTADECYLCHLOROSILANE;CHLORODIMETHYLOCTADECYLSILANE;Octadecylchlorodimethylsilane;OCTADECYLDIMETHYLCHLOROSILANE;chlorodimethyloctadecyl-silan
CBNumber: CB4155799
Molecular Formula: C20H43ClSi
Formula Weight: 347.09
MOL File: 18643-08-8.mol

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Chlorodimethyloctadecylsilane Property

Melting point:: 28-31 °C
Boiling point:: 145-155 °C0.005 mm Hg(lit.)
Density: 0.86 g/mL at 20 °C(lit.)
vapor pressure: 0-4220000Pa at 20-25℃
refractive index: 1.4530
Flash point:: >230 °F
storage temp.: Store at room temperature, keep dry and cool
form: Solid
Specific Gravity: 0.854
color: White
Water Solubility: Reacts with water.
Sensitive: Moisture Sensitive
Hydrolytic Sensitivity: 8: reacts rapidly with moisture, water, protic solvents
BRN: 2246012
InChI: 1S/C20H43ClSi/c1-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-22(2,3)21/h4-20H2,1-3H3
InChIKey: GZGREZWGCWVAEE-UHFFFAOYSA-N
SMILES: CCCCCCCCCCCCCCCCCC[Si](C)(C)Cl
LogP: 9
CAS DataBase Reference: 18643-08-8(CAS DataBase Reference)
EPA Substance Registry System: Silane, chlorodimethyloctadecyl- (18643-08-8)

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Safety

Hazard Codes: C,F
Risk Statements: 34-67-65-63-48/20-11-10
Safety Statements: 26-36/37/39-45-62
RIDADR: UN 2987 8/PG 2
WGK Germany: 2
F: 10-21
TSCA: TSCA listed
HazardClass: 8
PackingGroup: III
HS Code: 29319090
Storage Class: 8A - Combustible corrosive hazardous materials
Hazard Classifications: Skin Corr. 1B
STOT SE 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

H335May cause respiratory irritation

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

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

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 289108
Product name: Chloro(dimethyl)octadecylsilane
Purity: 95%
Packaging: 5g
Price: $39.3
Updated: 2025/07/31

Sigma-Aldrich

Product number: 289108
Product name: Chloro(dimethyl)octadecylsilane
Purity: 95%
Packaging: 25g
Price: $111
Updated: 2025/07/31

Sigma-Aldrich

Product number: 71034
Product name: Chloro-dimethyl-octadecylsilane solution
Purity: produced by Wacker Chemie AG, Burghausen, Germany, 70% in toluene
Packaging: 500G
Price: $775
Updated: 2023/06/20

Sigma-Aldrich

Product number: 71034
Product name: Chloro-dimethyl-octadecylsilane solution
Purity: produced by Wacker Chemie AG, Burghausen, Germany, 70% in toluene
Packaging: 5KG
Price: $2640
Updated: 2022/05/15

TCI Chemical

Product number: D1560
Product name: Dimethyloctadecylchlorosilane
Purity: >97.0%(T)
Packaging: 25mL
Price: $118
Updated: 2025/07/31

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Chlorodimethyloctadecylsilane Chemical Properties,Usage,Production

Chemical Properties

white to off-white crystalline powder or

Uses

Chlorodimethyl-n-octadecylsilane is used for preparation of hydrophobic surfaces and chain terminator.

Uses

Silylating reagent

Flammability and Explosibility

Not classified

Synthesis

Octadecyldimethylchlorosilane is prepared by reacting 1-Octadecene with Chlorodimethylsilane heated at 65℃.

Chlorodimethyloctadecylsilane Preparation Products And Raw materials

Raw materials

Preparation Products

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Chlorodimethyloctadecylsilane Suppliers

Americas 1 China 140 Europe 1 Germany 3 India 3 Japan 4 Singapore 1 Slovakia 1 Switzerland 1 United Kingdom 5 United States 19 Global 179

Shanghai Gileader Advanced Material Technology Co.,Ltd

Tel: 18516111942
Email: 823898732@qq.com
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ProdList: 1322
Advantage: 56

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006356688 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

Suzhou Siso new material Co.,Ltd.

Tel: 0512-65402974 18550909935;
Fax: 0512-67544899
Email: siso03@126.com
Country: China
ProdList: 1916
Advantage: 58

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30123
Advantage: 84

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
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Country: China
ProdList: 9401
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Energy Chemical

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ProdList: 44801
Advantage: 61

Shanghai Hanhong Scientific Co.,Ltd.

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Shandong Xiya Chemical Co., Ltd

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Email: 3007715519@qq.com
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ProdList: 18729
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View Lastest Price from Chlorodimethyloctadecylsilane manufacturers

Hubei Changfu Chemical Co., Ltd.

Product: n-Octadecyldimethylchlorosilane 18643-08-8
Price: US $0.00/kg
Min. Order: 1kg
Purity: 96%
Supply Ability: 20t
Release date: 2024-12-18

Hebei Zhuanglai Chemical Trading Co.,Ltd

Product: Chlorodimethyloctadecylsilane 18643-08-8
Price: US $58.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 5000kg/week
Release date: 2024-05-22

Hangzhou FandaChem Co.,Ltd.

Product: Chlorodimethyloctadecylsilane 18643-08-8
Price: US $0.00/kg
Min. Order: 100kg
Purity: 98%
Supply Ability: 1000 Tons
Release date: 2022-02-21

18643-08-8, ChlorodimethyloctadecylsilaneRelated Search:

Chlorodimethyloctadecylsilane N-BUTYLSILANE N-BUTYLDIMETHYLCHLOROSILANE Tetradecane n-Heptadecane N-OCTADECYLSILANE N-OCTYLSILANE N-PENTADECANE ETHYLDIMETHYLCHLOROSILANE n-Hendecane N-BUTYLDIMETHYLSILANE Chlorotrimethylsilane N-PENTYLSILANE n-Tridecane Chlorodimethylsilane Octadecane ETHYLDIMETHYLSILANE TRIACONTYLDIMETHYLCHLOROSILANE

DIMETHYL-N-OCTADECYLCHLOROSILANE

DIMETHYL-N-OCTADECYLSILYL CHLORIDE

DIMETHYLOCTADECYLCHLOROSILANE

DIMETHYLOCTADECYLSILYLCHLORIDE

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Chlorodimethyloctadecylsilane ,97%

Chlorodimethyloctadecylsilane n-Octadecyldimethylchlorosilane Stearyldimethylchlorosilane

Chlorodimethyloctadecylsilane, 92%, 3 - 5% branched isomers

n-OCTADECYLDIMETHYLCHLOROSILANE 85%

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OCTADECYLDIMETHYLCHLOROSILANE

N-OCTADECYLDIMETHYLCHLOROSILANE

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N-OCTADECYLDIMETHYLCHLOROSILANE: 70% IN TOLUENE

N-OCTADECYLDIMETHYLCHLOROSILANE (3-6% C18 ISOMERS)

CHLORODIMETHYL-N-OCTADECYLSILANE: TECH., 90%, CONT. 5-10% BRANCHED ISOMERS

Chlorodimethyloctadecylsilane, tech. 85%

Dimethyloctadecylchlorosilane, Octadecyldimethylchlorosilane

Dimethyloctadecylchlorosilane &gt

DK193

DK642

CD5636

18643-08-8

18463-08-8

C20H43ClSi

CH3CH217SiCH32Cl

Monochlorosilanes

Si (Classes of Silicon Compounds)

Si-Cl Compounds

Silicon-Based

Synthetic Reagents

Protecting and Derivatizing Reagents

Protection and Derivatization

Monochlorosilanes

Si (Classes of Silicon Compounds)

Si-Cl Compounds