2-Ethyl-1,3-cyclopentanedione

Also known as: 2-Ethylcyclopentane-1,3-dione, ETHYLCYCLE-D, MFCD00044191, EINECS 212-512-3, 2-Ethylcyclopentan-1,3-dione, 1,3-Cyclopentanedione, 2-ethyl-

2-Ethyl-1,3-cyclopentanedione (CAS 823-36-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H10O2 and a molecular weight of 126.15300 g/mol. Key properties include a melting point of 172-175 °C, a boiling point of 232.9ºC at 760 mmHg, a density of 1.057 g/cm3 and a flash point of 84.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 823-36-9
Jingsj CID: J-47485-1
Molecular Formula: C₇H₁₀O₂
Molecular Weight: 126.15300 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	172-175 °C
Boiling Point	232.9ºC at 760 mmHg
Density	1.057 g/cm3
Flash Point	84.8ºC
Exact Mass	126.06800
PSA	34.14000
LogP	0.94460
Refractive Index	1.53

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 2-Ethyl-1,3-cyclopentanedione?

The CAS number of 2-Ethyl-1,3-cyclopentanedione is 823-36-9.

What are the molecular formula and molecular weight of 2-Ethyl-1,3-cyclopentanedione?

2-Ethyl-1,3-cyclopentanedione has molecular formula C7H10O2 and molecular weight 126.15300 g/mol.

What are the upstream and downstream products of 2-Ethyl-1,3-cyclopentanedione?

For 2-Ethyl-1,3-cyclopentanedione, Upstream Products: 1,3-Cyclopentanedione, ch3cho, 1,2-Bis(trimethylsilyloxy)cyclobutene; Downstream Products: Ethylmetrienone, 13-Ethyl-3-methoxygona-1,3,5(10),8-tetraen-17beta-ol.

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-Ethyl-1,3-cyclopentanedione (CAS 823-36-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47485-1 (accessed 2026-11-09).

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