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2,2,6-Trimethyl-4H-1,3-dioxin-4-one

Also known as: Diketene Acetone Adduct, 2,2,6-trimethyl-1,3-dioxin-4-one, 4H-1,3-Dioxin-4-one, 2,2,6-trimethyl-

2,2,6-Trimethyl-4H-1,3-dioxin-4-one (CAS 5394-63-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H10O3 and a molecular weight of 142.152 g/mol. Key properties include a melting point of 12-13 °C(lit.), a boiling point of 219.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 86.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5394-63-8
Jingsj CID
J-24193-0
Molecular Formula
C7H10O3
Molecular Weight
142.152 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point12-13 °C(lit.)
Boiling Point219.5±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point86.7±0.0 °C
Exact Mass142.062988
PSA35.53000
LogP0.15
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.439
Additional Propertypractically insoluble

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H319 — Causes serious eye 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 2,2,6-Trimethyl-4H-1,3-dioxin-4-one?

The CAS number of 2,2,6-Trimethyl-4H-1,3-dioxin-4-one is 5394-63-8.

What are the molecular formula and molecular weight of 2,2,6-Trimethyl-4H-1,3-dioxin-4-one?

2,2,6-Trimethyl-4H-1,3-dioxin-4-one has molecular formula C7H10O3 and molecular weight 142.152 g/mol.

Is 2,2,6-Trimethyl-4H-1,3-dioxin-4-one hazardous?

2,2,6-Trimethyl-4H-1,3-dioxin-4-one has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2,2,6-Trimethyl-4H-1,3-dioxin-4-one?

For 2,2,6-Trimethyl-4H-1,3-dioxin-4-one, Upstream Products: Diketene, ketene, p-Toluenesulfonic acid; Downstream Products: 4'-Methoxyacetoacetanilide, Benzyl acetoacetate, 3-oxo-N-[4-(trifluoromethyl)phenyl]butanamide.

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

Last updated:

How to cite: Jingsj. "2,2,6-Trimethyl-4H-1,3-dioxin-4-one (CAS 5394-63-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24193-0 (accessed 2026-11-09).

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