3,4-dimethylcyclopentane-1,2-dione

3,4-二甲基-1,2-环戊二酮

Also known as: 3,4-Dimethyl-1,2-cyclopentanedione, 2-Hydroxy-3,4-dimethyl-2-cyclopenten-1-one, Methyl corylone, FEMA 3268, EINECS 236-810-8, UNII:50AIF51OCI, MFCD00143063, 1,2-Cyclopentanedione, 3,4-dimethyl-

3,4-dimethylcyclopentane-1,2-dione (CAS 13494-06-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H10O2 and a molecular weight of 126.153 g/mol. It is also known as 3,4-Dimethyl-1,2-cyclopentanedione, 2-Hydroxy-3,4-dimethyl-2-cyclopenten-1-one and Methyl corylone. Key properties include a melting point of 68-72 °C(lit.), a boiling point of 187.4±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 63.6±4.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13494-06-9
Jingsj CID
J-42650-7
Molecular Formula
C7H10O2
Chinese Name
3,4-二甲基-1,2-环戊二酮
Molecular Weight
126.153 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point68-72 °C(lit.)
Boiling Point187.4±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point63.6±4.4 °C

Frequently Asked Questions

What is the CAS number of 3,4-dimethylcyclopentane-1,2-dione?

The CAS number of 3,4-dimethylcyclopentane-1,2-dione is 13494-06-9.

What are the molecular formula and molecular weight of 3,4-dimethylcyclopentane-1,2-dione?

3,4-dimethylcyclopentane-1,2-dione has molecular formula C7H10O2 and molecular weight 126.153 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-dimethylcyclopentane-1,2-dione (CAS 13494-06-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42650-7 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.