Ethadione

Also known as: 3-ethyl-5,5-dimethyl-1,3-oxazolidine-2,4-dione, 3-ethyl-5,5-dimethyloxazolidine-2,4-dione, Aethadion, Didione, Dimedion, Dimedione, ETHADIONE, Epinal, Epinyl, Ethadione, Ethadionum, Petidiol, Petisan, Petidion, Neo-Absentol

Ethadione (CAS 520-77-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H11NO3 and a molecular weight of 157.16700 g/mol. Key properties include a boiling point of 178.7ºC at 760mmHg, a density of 1.124g/cm3 and a flash point of 61.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 520-77-4
Jingsj CID: J-1177729-0
Molecular Formula: C₇H₁₁NO₃
Molecular Weight: 157.16700 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	178.7ºC at 760mmHg
Density	1.124g/cm3
Flash Point	61.9ºC
Exact Mass	157.07400
PSA	46.61000
LogP	0.70160
Refractive Index	1.454

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 Ethadione?

The CAS number of Ethadione is 520-77-4.

What are the molecular formula and molecular weight of Ethadione?

Ethadione has molecular formula C7H11NO3 and molecular weight 157.16700 g/mol.

What are the upstream and downstream products of Ethadione?

For Ethadione, Upstream Products: 5,5-Dimethyloxazolidine-2,4-dione, Diethyl sulfate, Ethyl isocyanate.

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. "Ethadione (CAS 520-77-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1177729-0 (accessed 2026-11-09).

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