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2-Methoxyethoxymethyl chloride

Also known as: MEM chloride, MEMCl, 1-(Chloromethoxy)-2-methoxyethane, Chloromethyl 2-methoxyethyl ether, Ethylene glycol chloromethyl methyl ether, β-Methoxyethoxymethyl chloride, 2,5-Dioxahexyl chloride, Rosithromycinside chain, 1-Chloromethoxy-2-methoxyethane, 2-Methoxyethoxymethyl chloride

2-Methoxyethoxymethyl chloride (CAS 3970-21-6) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H9ClO2 and a molecular weight of 124.566 g/mol. Key properties include a boiling point of 161.3±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 32.4±15.6 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3970-21-6
Jingsj CID
J-244-8
Molecular Formula
C4H9ClO2
Molecular Weight
124.566 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point161.3±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point32.4±15.6 °C
Exact Mass124.029106
PSA18.46000
LogP-0.07
Vapor Pressure3.0±0.3 mmHg at 25°C
Refractive Index1.402

GHS Safety & Compliance

Flammable / Irritant / Health HazardSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H350 — May cause cancer

Frequently Asked Questions

What is the CAS number of 2-Methoxyethoxymethyl chloride?

The CAS number of 2-Methoxyethoxymethyl chloride is 3970-21-6.

What are the molecular formula and molecular weight of 2-Methoxyethoxymethyl chloride?

2-Methoxyethoxymethyl chloride has molecular formula C4H9ClO2 and molecular weight 124.566 g/mol.

Is 2-Methoxyethoxymethyl chloride hazardous?

2-Methoxyethoxymethyl chloride has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H315 — Causes skin irritation.

What are the upstream and downstream products of 2-Methoxyethoxymethyl chloride?

For 2-Methoxyethoxymethyl chloride, Upstream Products: Thionyl chloride, Bis(2-methoxyethoxy)methane, Formaldehyde; Downstream Products: Bis(2-methoxyethoxy)methane, Chloromethane, Dimethyl ether.

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

Last updated:

How to cite: Jingsj. "2-Methoxyethoxymethyl chloride (CAS 3970-21-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-244-8 (accessed 2026-11-09).

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