5-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one

Also known as: 2-Cyclopenten-1-one, 5-ethyl-2-hydroxy-3-methyl-, 2-Cyclopenten-1-one,2-hydroxy-5-ethyl-3-methyl, 2-Cyclopenten-1-one,5-ethyl-2-hydroxy-3-methyl, 3-Methyl-5-ethyl-2-cyclopenten-2-ol-1-on, 5-ETHYL-2-HYDROXY-3-METHYL-2-CYCLOPENTEN-1-ON, 5-Ethyl-2-hydroxy-3-methyl-2-cyclopenten-1-one, 5-Ethyl-2-hydroxy-3-methyl-2-cyclopentenone, Ethylcyclotene

5-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one (CAS 53263-58-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H12O2 and a molecular weight of 140.18000 g/mol. Key properties include a boiling point of 260.5ºC at 760mmHg, a density of 1.086g/cm3 and a flash point of 108ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 53263-58-4
Jingsj CID: J-1503973-3
Molecular Formula: C₈H₁₂O₂
Molecular Weight: 140.18000 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	260.5ºC at 760mmHg
Density	1.086g/cm3
Flash Point	108ºC
Exact Mass	140.08400
PSA	37.30000
LogP	1.81740
Refractive Index	1.507

Customs & Trade Information

HS Code	2914400090
Summary	2914400090 other ketone-alcohols and ketone-aldehydes。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one?

The CAS number of 5-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one is 53263-58-4.

What are the molecular formula and molecular weight of 5-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one?

5-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one has molecular formula C8H12O2 and molecular weight 140.18000 g/mol.

What are the upstream and downstream products of 5-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one?

For 5-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one, Upstream Products: 2-Aminopyridine, 3-Methyl-1,2-cyclopentanedione.

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-ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one (CAS 53263-58-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503973-3 (accessed 2026-11-09).

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