Dimedone

Also known as: 5,5-Dimethyl-1,3-cyclohexanedione, 5,5-Dimethylcyclohexane-1,3-dione, 1,1-Dimethyl-3,5-cyclohexanedione, 1,1-Dimethyl-3,5-diketocyclohexane, 5,5-Dimethyldihydroresorcinol, Methone, Cyclohexane-1,3-dione, 5,5-dimethyl-

Dimedone (CAS 126-81-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H12O2 and a molecular weight of 140.18 g/mol. Key properties include a melting point of 146-148 °C(lit.), a boiling point of 233.7±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 85.1±19.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 126-81-8
Jingsj CID: J-43241-7
Molecular Formula: C₈H₁₂O₂
Molecular Weight: 140.18 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	146-148 °C(lit.)
Boiling Point	233.7±23.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	85.1±19.6 °C
Exact Mass	140.083725
PSA	34.14000
LogP	0.15
Vapor Pressure	0.1±0.5 mmHg at 25°C
Refractive Index	1.453
Additional Property	0.416 g/100 mL (25 ºC)

Customs & Trade Information

HS Code	2914299000
Summary	2914299000. other cyclanic, cyclenic or cyclotherpenic ketones without other oxygen function. 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 Dimedone?

The CAS number of Dimedone is 126-81-8.

What are the molecular formula and molecular weight of Dimedone?

Dimedone has molecular formula C8H12O2 and molecular weight 140.18 g/mol.

What are the upstream and downstream products of Dimedone?

For Dimedone, Downstream Products: 1,1,3-TRIMETHYLCYCLOHEXANE, ethyl 3,6,6-trimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indole-2-carboxylate, Benzamide.

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. "Dimedone (CAS 126-81-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43241-7 (accessed 2026-11-09).

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