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3-Oxetanone

Also known as: 1,3-Epoxy-2-propanone, Oxetan-3-one, 3-Oxooxetane, 1,3-epoxypropanone, oxacyclobutan-3-one, 3-oxooxetane

3-Oxetanone (CAS 6704-31-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C3H4O2 and a molecular weight of 72.06 g/mol. Key properties include a boiling point of 139.7±33.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 52.9±18.9 °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.
6704-31-0
Jingsj CID
J-1962198-8
Molecular Formula
C3H4O2
Molecular Weight
72.06 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point139.7±33.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point52.9±18.9 °C
Exact Mass72.021126
PSA26.30000
LogP-1.51
Vapor Pressure6.3±0.3 mmHg at 25°C
Refractive Index1.445
Storage Conditions?20°C
Additional PropertyMiscible with tetrahydrofuran.

GHS Safety & Compliance

Flammable / Corrosion / IrritantSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-Oxetanone?

The CAS number of 3-Oxetanone is 6704-31-0.

What are the molecular formula and molecular weight of 3-Oxetanone?

3-Oxetanone has molecular formula C3H4O2 and molecular weight 72.06 g/mol.

Is 3-Oxetanone hazardous?

3-Oxetanone 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 3-Oxetanone?

For 3-Oxetanone, Upstream Products: Oxetan-3-ol, 3,3-Dimethoxyoxetane, Diazomethane; Downstream Products: 3-(4-bromophenyl)oxetan-3-ol, ethyl 2-(oxetan-3-ylidene)acetate, (2-(4-Bromophenyl)thiazol-4-yl)methanol.

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

Last updated:

How to cite: Jingsj. "3-Oxetanone (CAS 6704-31-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1962198-8 (accessed 2026-11-09).

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