1-phenylpent-4-en-1-one

Also known as: 4-Penten-1-one,1-phenyl-, 4-Pentenophenone, (3-Butenyl)phenyl ketone, 3-butenyl phenyl ketone, 1-phenyl-4-penten-1-one, 1-phenyl-pent-4-en-1-one, 5-Oxo-5-phenyl-1-pentene, LAVONAX, Phenyl(3-butenyl) ketone, phenyl-(but-3-enyl)-ketone, NSC 408289, Balsam ketone, 4-Pentenophenone (6CI,7CI,8CI), 3-Butenoylbenzene

1-phenylpent-4-en-1-one (CAS 3240-29-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H12O and a molecular weight of 160.21200 g/mol. Key properties include a boiling point of 249.7ºC at 760mmHg, a density of 0.967g/cm3 and a flash point of 99.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3240-29-7
Jingsj CID: J-45688-2
Molecular Formula: C₁₁H₁₂O
Molecular Weight: 160.21200 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	249.7ºC at 760mmHg
Density	0.967g/cm3
Flash Point	99.1ºC
Exact Mass	160.08900
PSA	17.07000
LogP	2.83550
Refractive Index	1.514

Customs & Trade Information

HS Code	2914399090
Summary	2914399090. other aromatic 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 1-phenylpent-4-en-1-one?

The CAS number of 1-phenylpent-4-en-1-one is 3240-29-7.

What are the molecular formula and molecular weight of 1-phenylpent-4-en-1-one?

1-phenylpent-4-en-1-one has molecular formula C11H12O and molecular weight 160.21200 g/mol.

What are the upstream and downstream products of 1-phenylpent-4-en-1-one?

For 1-phenylpent-4-en-1-one, Upstream Products: Allyl bromide, Acetophenone, Ethyl benzoylacetate; Downstream Products: Ethyl benzoate, benzoic acid, 1-Phenyl-1,4-pentanedione.

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. "1-phenylpent-4-en-1-one (CAS 3240-29-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45688-2 (accessed 2026-11-09).

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