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allyl methyl ether

Also known as: 3-methoxypropene, 3-methoxy-1-propene, methyl allyl ether, 1-methoxy-2-propene, 4-oxapent-1-ene, 3-methoxyprop-1-ene, CH2=CHCH2OCH3, methyl 2-propenyl ether, Methyl2-propenylether

allyl methyl ether (CAS 627-40-7) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C4H8O and a molecular weight of 72.106 g/mol. Key properties include a boiling point of 46.0±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -42.1±6.3 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
627-40-7
Jingsj CID
J-40414-3
Molecular Formula
C4H8O
Molecular Weight
72.106 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point46.0±0.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point-42.1±6.3 °C
Exact Mass72.057518
PSA9.23000
LogP0.75
Vapor Pressure354.4±0.0 mmHg at 25°C
Refractive Index1.376

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2909199090
Summary2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of allyl methyl ether?

The CAS number of allyl methyl ether is 627-40-7.

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

allyl methyl ether has molecular formula C4H8O and molecular weight 72.106 g/mol.

Is allyl methyl ether hazardous?

allyl methyl ether has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

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

Last updated:

How to cite: Jingsj. "allyl methyl ether (CAS 627-40-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40414-3 (accessed 2026-11-06).

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