4,6-Dimethyl-2H-pyran-2-one

Also known as: 2,4-Dimethyl-alpha-pyrone, 2H-Pyran-2-one, 4,6-dimethyl-, 4,6-DIMETHYL-2-PYRONE, 4,6-DIMETHYL-ALPHA-PYRONE, 4,6-DIMETHYL-PYRAN-2-ONE, 4,6-Dimethyl-2-pyrone, 4,6-Dimethyl-α-pyrone, 4,6-Dimethylcoumalin, 4,6-dimethyl-2h-pyran-2-on, 4,6-dimethylpyran-2-one, EINECS 211-618-7, MFCD00075555, Mesitene lactone, Sorbic acid, 5-hydroxy-3-methyl-, delta-lactone, T6OVJ D1 F1

4,6-Dimethyl-2H-pyran-2-one (CAS 675-09-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H8O2 and a molecular weight of 124.137 g/mol. Key properties include a melting point of 48-50 °C(lit.), a boiling point of 245.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 90.1±16.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 675-09-2
Jingsj CID: J-47173-8
Molecular Formula: C₇H₈O₂
Molecular Weight: 124.137 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	48-50 °C(lit.)
Boiling Point	245.0±0.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	90.1±16.1 °C
Exact Mass	124.052429
PSA	30.21000
LogP	0.98
Vapor Pressure	0.0±0.5 mmHg at 25°C
Refractive Index	1.485

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. 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 4,6-Dimethyl-2H-pyran-2-one?

The CAS number of 4,6-Dimethyl-2H-pyran-2-one is 675-09-2.

What are the molecular formula and molecular weight of 4,6-Dimethyl-2H-pyran-2-one?

4,6-Dimethyl-2H-pyran-2-one has molecular formula C7H8O2 and molecular weight 124.137 g/mol.

What are the upstream and downstream products of 4,6-Dimethyl-2H-pyran-2-one?

For 4,6-Dimethyl-2H-pyran-2-one, Upstream Products: Allenyltri-n-butyltin, Methylmagnesium chloride, Allene; Downstream Products: 4,6-Dimethyl-2-heptanone, Metipirox, 1,14-Dimethyl-4,10-dioxatetracyclo[5.5.2.0(2,6).0(8,12)]tetradec-13-ene-3,5,9,11-tetraone.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,6-Dimethyl-2H-pyran-2-one (CAS 675-09-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47173-8 (accessed 2026-11-09).

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