2,2-Dimethyl-5-phenyl-1,3-dioxane-4,6-dione

Also known as: 5-Phenylmeldrum's Acid, 5-Phenylmelorum's acid, Isopropylidenephenylmalonate, 1,3-Dioxane-4,6-dione,2,2-dimethyl-5-phenyl-, 2,2-Dimethyl-5-phenyl-1,3-dioxane-4,6-dione

2,2-Dimethyl-5-phenyl-1,3-dioxane-4,6-dione (CAS 15231-78-4) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C12H12O4 and a molecular weight of 220.22100 g/mol. Key properties include a melting point of 135-140ºC, a boiling point of 446.5ºC at 760mmHg, a density of 1.195g/cm3 and a flash point of 237.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 15231-78-4
Jingsj CID: J-1310023-7
Molecular Formula: C₁₂H₁₂O₄
Molecular Weight: 220.22100 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	135-140ºC
Boiling Point	446.5ºC at 760mmHg
Density	1.195g/cm3
Flash Point	237.5ºC
Exact Mass	220.07400
PSA	52.60000
LogP	1.60630
Vapor Pressure	3.63E-08mmHg at 25°C
Refractive Index	1.516

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 2,2-Dimethyl-5-phenyl-1,3-dioxane-4,6-dione?

The CAS number of 2,2-Dimethyl-5-phenyl-1,3-dioxane-4,6-dione is 15231-78-4.

What are the molecular formula and molecular weight of 2,2-Dimethyl-5-phenyl-1,3-dioxane-4,6-dione?

2,2-Dimethyl-5-phenyl-1,3-dioxane-4,6-dione has molecular formula C12H12O4 and molecular weight 220.22100 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. "2,2-Dimethyl-5-phenyl-1,3-dioxane-4,6-dione (CAS 15231-78-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1310023-7 (accessed 2026-11-09).

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