3-Hydroxy-2-phenylcyclopent-2-enone

Also known as: 3-Hydroxy-2-phenylcyclopent-2-en-1-one, 2-Cyclopenten-1-one, 3-hydroxy-2-phenyl-, 3-hydroxy-2-phenyl-cyclopent-2-enone

3-Hydroxy-2-phenylcyclopent-2-enone (CAS 5864-79-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H10O2 and a molecular weight of 174.19600 g/mol. Key properties include a boiling point of 337.3ºC at 760 mmHg, a density of 1.284g/cm3 and a flash point of 143.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5864-79-9
Jingsj CID: J-1493987-8
Molecular Formula: C₁₁H₁₀O₂
Molecular Weight: 174.19600 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	337.3ºC at 760 mmHg
Density	1.284g/cm3
Flash Point	143.5ºC
Exact Mass	174.06800
PSA	37.30000
LogP	2.31860
Refractive Index	1.639

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 3-Hydroxy-2-phenylcyclopent-2-enone?

The CAS number of 3-Hydroxy-2-phenylcyclopent-2-enone is 5864-79-9.

What are the molecular formula and molecular weight of 3-Hydroxy-2-phenylcyclopent-2-enone?

3-Hydroxy-2-phenylcyclopent-2-enone has molecular formula C11H10O2 and molecular weight 174.19600 g/mol.

What are the upstream and downstream products of 3-Hydroxy-2-phenylcyclopent-2-enone?

For 3-Hydroxy-2-phenylcyclopent-2-enone, Upstream Products: 1,2-Bis(trimethylsilyloxy)cyclobutene, Benzaldehyde diethyl acetal, Benzaldehyde.

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. "3-Hydroxy-2-phenylcyclopent-2-enone (CAS 5864-79-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1493987-8 (accessed 2026-11-09).

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