Dichloro(methyl)octadecylsilane

二氯(甲基)十八烷基硅烷

Also known as: stearylmethyldichlorosilane, dichloro(methyl)octadecylsilane, dichloro-methyl-octadecylsilane, methyl-n-octadecyldichlorosilane, octadecylmethyldichlorosilane, dichlorooctadecylmethylsilane, silane ODM, Methyloctadecyldichlorosilane

Dichloro(methyl)octadecylsilane (CAS 5157-75-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C19H40Cl2Si and a molecular weight of 367.512 g/mol. It is also known as stearylmethyldichlorosilane, dichloro(methyl)octadecylsilane and dichloro-methyl-octadecylsilane. Key properties include a melting point of ~25 °C(lit.), a boiling point of 382.0±10.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 176.7±16.6 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5157-75-5
Jingsj CID
J-9239-3
Molecular Formula
C19H40Cl2Si
Chinese Name
二氯(甲基)十八烷基硅烷
Molecular Weight
367.512 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point~25 °C(lit.)
Boiling Point382.0±10.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point176.7±16.6 °C

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of Dichloro(methyl)octadecylsilane?

The CAS number of Dichloro(methyl)octadecylsilane is 5157-75-5.

What are the molecular formula and molecular weight of Dichloro(methyl)octadecylsilane?

Dichloro(methyl)octadecylsilane has molecular formula C19H40Cl2Si and molecular weight 367.512 g/mol.

Is Dichloro(methyl)octadecylsilane hazardous?

Dichloro(methyl)octadecylsilane has GHS signal word Danger.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Dichloro(methyl)octadecylsilane (CAS 5157-75-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9239-3 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.