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Dichloromethyl methyl ether

Also known as: 1,1-Dichlorodimethyl ether, 1,1-Dichloro-1-methoxymethane, Dichloro(methoxy)methane, asym-Dichlorodimethyl ether, α,α-Dichloromethyl methyl ether, Dichloromethoxymethane

Dichloromethyl methyl ether (CAS 4885-02-3) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C2H4Cl2O and a molecular weight of 114.959 g/mol. Key properties include a melting point of 85ºC, a boiling point of 85.0±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 42.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4885-02-3
Jingsj CID
J-18519-4
Molecular Formula
C2H4Cl2O
Molecular Weight
114.959 g/mol
Category
Ethers
Last updated
8/21/2026
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Physicochemical Properties

Melting Point85ºC
Boiling Point85.0±0.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point42.2±0.0 °C
Exact Mass113.963921
PSA9.23000
LogP0.73
Vapor Pressure79.0±0.1 mmHg at 25°C
Refractive Index1.413

GHS Safety & Compliance

Flammable / Corrosion / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H332 — Harmful if inhaled
  • H314 — Causes severe skin burns and eye damage

Frequently Asked Questions

What is the CAS number of Dichloromethyl methyl ether?

The CAS number of Dichloromethyl methyl ether is 4885-02-3.

What are the molecular formula and molecular weight of Dichloromethyl methyl ether?

Dichloromethyl methyl ether has molecular formula C2H4Cl2O and molecular weight 114.959 g/mol.

Is Dichloromethyl methyl ether hazardous?

Dichloromethyl methyl ether has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H332 — Harmful if inhaled.

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

Last updated:

How to cite: Jingsj. "Dichloromethyl methyl ether (CAS 4885-02-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18519-4 (accessed 2026-11-06).

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