5-Phenylcyclohexane-1,3-dione

Also known as: 5-Phenyl-1,3-cyclohexanedione, 1,3-Dioxo-5-phenylcyclohexane, ASISCHEM C66298, RARECHEM AR PA 0039, 1,3-Cyclohexanedione, 5-phenyl-

5-Phenylcyclohexane-1,3-dione (CAS 493-72-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H12O2 and a molecular weight of 188.223 g/mol. Key properties include a melting point of 188 °C(lit.), a boiling point of 356.5±42.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 133.8±24.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 493-72-1
Jingsj CID: J-23604-4
Molecular Formula: C₁₂H₁₂O₂
Molecular Weight: 188.223 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	188 °C(lit.)
Boiling Point	356.5±42.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	133.8±24.9 °C
Exact Mass	188.083725
PSA	34.14000
LogP	0.98
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.553

Customs & Trade Information

HS Code	2914399090
Summary	2914399090. other aromatic 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 5-Phenylcyclohexane-1,3-dione?

The CAS number of 5-Phenylcyclohexane-1,3-dione is 493-72-1.

What are the molecular formula and molecular weight of 5-Phenylcyclohexane-1,3-dione?

5-Phenylcyclohexane-1,3-dione has molecular formula C12H12O2 and molecular weight 188.223 g/mol.

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. "5-Phenylcyclohexane-1,3-dione (CAS 493-72-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23604-4 (accessed 2026-11-09).

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