Chloro(chloromethyl)dimethylsilane

Also known as: (Chloromethyl)dimethylchlorosilane, Chloromethyldimethylchlorosilane, CMDMCS, Silane, chloro(chloromethyl)dimethyl-

Chloro(chloromethyl)dimethylsilane (CAS 1719-57-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C3H8Cl2Si and a molecular weight of 143.087 g/mol. Key properties include a melting point of <0ºC, a boiling point of 112.5±13.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 22.5±14.6 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H314 — Causes severe skin burns and eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 1719-57-9
Jingsj CID: J-9228-4
Molecular Formula: C₃H₈Cl₂Si
Molecular Weight: 143.087 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 11/3/2026

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Physicochemical Properties

Melting Point	<0ºC
Boiling Point	112.5±13.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	22.5±14.6 °C
Exact Mass	141.977234
LogP	2.41
Vapor Pressure	25.6±0.2 mmHg at 25°C
Refractive Index	1.417
Additional Property	DECOMPOSES

GHS Safety & Compliance

Flammable / Corrosion / IrritantSignal word: Danger

H225 — Highly flammable liquid and vapour
H314 — Causes severe skin burns and eye damage
H335 — May cause respiratory irritation

Customs & Trade Information

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Chloro(chloromethyl)dimethylsilane?

The CAS number of Chloro(chloromethyl)dimethylsilane is 1719-57-9.

What are the molecular formula and molecular weight of Chloro(chloromethyl)dimethylsilane?

Chloro(chloromethyl)dimethylsilane has molecular formula C3H8Cl2Si and molecular weight 143.087 g/mol.

Is Chloro(chloromethyl)dimethylsilane hazardous?

Chloro(chloromethyl)dimethylsilane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H314 — Causes severe skin burns and eye damage; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Chloro(chloromethyl)dimethylsilane?

For Chloro(chloromethyl)dimethylsilane, Upstream Products: Chlorotrimethylsilane, (Chloromethyl)trimethylsilane, 1,3-Bis(chloromethyl)tetramethyldisiloxane; Downstream Products: [Acetoxy(dimethyl)silyl]methyl acetate, Allyl(chloromethyl)dimethylsilane, (Chloromethyl)dimethyl(p-tolyl)silane.

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

Last updated: 11/3/2026

How to cite: Jingsj. "Chloro(chloromethyl)dimethylsilane (CAS 1719-57-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9228-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.