Ethyl 2-cyclopentyl-3-oxobutanoate

Also known as: Ethyl α-acetylcyclopentaneacetate, Ethyl α-cyclopentylacetoacetate, Ethyl 2-cyclopentylacetoacetate, 2-Cyclopentyl-3-oxobutyric acid ethyl ester, 2-Cyclopentyl-3-oxobutanoic acid ethyl ester, Cyclopentaneacetic acid, α-acetyl-, ethyl ester, Ethyl 2-cyclopentyl-3-oxobutanoate, FR-2068, TIMTEC-BB SBB008444

Ethyl 2-cyclopentyl-3-oxobutanoate (CAS 1540-32-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C11H18O3 and a molecular weight of 198.25900 g/mol. Key properties include a boiling point of 266.7ºC at 760 mmHg, a density of 1.038g/cm3 and a flash point of 111.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1540-32-5
Jingsj CID: J-1413005-3
Molecular Formula: C₁₁H₁₈O₃
Molecular Weight: 198.25900 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	266.7ºC at 760 mmHg
Density	1.038g/cm3
Flash Point	111.2ºC
Exact Mass	198.12600
PSA	43.37000
LogP	1.94490
Vapor Pressure	0.0085mmHg at 25°C
Refractive Index	1.463

Customs & Trade Information

HS Code	2918300090
Summary	2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethyl 2-cyclopentyl-3-oxobutanoate?

The CAS number of Ethyl 2-cyclopentyl-3-oxobutanoate is 1540-32-5.

What are the molecular formula and molecular weight of Ethyl 2-cyclopentyl-3-oxobutanoate?

Ethyl 2-cyclopentyl-3-oxobutanoate has molecular formula C11H18O3 and molecular weight 198.25900 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. "Ethyl 2-cyclopentyl-3-oxobutanoate (CAS 1540-32-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1413005-3 (accessed 2026-11-09).

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