3,5-Dimethyl-2-cyclohexen-1-one

Also known as: 3,5-Dimethylcyclohex-2-en-1-one, 3,5-Dimethyl-2-cyclohexene-1-one, 2-Cyclohexen-1-one, 3,5-dimethyl-, 3,5-Dimethyl-2-cyclohexen-1-on, 3,5-diMethylcyclohex-2-enone

3,5-Dimethyl-2-cyclohexen-1-one (CAS 1123-09-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H12O and a molecular weight of 124.18000 g/mol. Key properties include a boiling point of 211-212ºC, a density of 0.881 and a flash point of 79ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1123-09-7
Jingsj CID: J-33584-2
Molecular Formula: C₈H₁₂O
Molecular Weight: 124.18000 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	211-212ºC
Density	0.881
Flash Point	79ºC
Exact Mass	124.08900
PSA	17.07000
LogP	1.93170
Vapor Pressure	0.213mmHg at 25°C
Refractive Index	1.482-1.484

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 3,5-Dimethyl-2-cyclohexen-1-one?

The CAS number of 3,5-Dimethyl-2-cyclohexen-1-one is 1123-09-7.

What are the molecular formula and molecular weight of 3,5-Dimethyl-2-cyclohexen-1-one?

3,5-Dimethyl-2-cyclohexen-1-one has molecular formula C8H12O and molecular weight 124.18000 g/mol.

What are the upstream and downstream products of 3,5-Dimethyl-2-cyclohexen-1-one?

For 3,5-Dimethyl-2-cyclohexen-1-one, Upstream Products: 3,5-Dimethylcyclohexanol (mixture of isomers), 3,5-Dimethylanisole, Methyl 2,6-dimethyl-4-oxocyclohex-2-enecarboxylate; Downstream Products: 2,6-dimethyl-p-benzoquinone, 1-(3,5-Dimethylphenyl)ethanone, 3,5-Dimethylcyclohexanol (mixture of isomers).

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. "3,5-Dimethyl-2-cyclohexen-1-one (CAS 1123-09-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33584-2 (accessed 2026-11-09).

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