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2-Phenylacetophenone

Also known as: 1,2-Diphenylethanone, Benzyl phenyl ketone, Deoxybenzoin, Desoxybenzoin, α-Phenylacetophenone, Phenylmethyl phenyl ketone, 1,2-diphenyl-ethanone, Benzoin, deoxy, Ethanone, 1,2-diphenyl-, NSC 6097, NSC 131456, NSC 249236, Valdecoxib Deoxy Benzoin, ValdecoxibDeoxyBenzoin(BenzylPhenylKetone)

2-Phenylacetophenone (CAS 451-40-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C14H12O and a molecular weight of 196.245 g/mol. Key properties include a melting point of 54-55 °C(lit.), a boiling point of 320.6±11.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 137.0±14.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
451-40-1
Jingsj CID
J-3199-2
Molecular Formula
C14H12O
Molecular Weight
196.245 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point54-55 °C(lit.)
Boiling Point320.6±11.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point137.0±14.2 °C
Exact Mass196.088821
PSA17.07000
LogP3.18
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.584
Additional Propertymethanol: 0.1 g/mL, clear

Activity & Biological Data

Additional Information[1]. Hellewell L, et al. Chalcones, stilbenes and ketones have anti-infective properties via inhibition of bacterial drug-efflux and consequential synergism with antimicrobial agents. Access Microbiol. 2020 Feb 18;2(4):acmi000105.

Customs & Trade Information

HS Code2914399090
Summary2914399090. 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 2-Phenylacetophenone?

The CAS number of 2-Phenylacetophenone is 451-40-1.

What are the molecular formula and molecular weight of 2-Phenylacetophenone?

2-Phenylacetophenone has molecular formula C14H12O and molecular weight 196.245 g/mol.

What are the upstream and downstream products of 2-Phenylacetophenone?

For 2-Phenylacetophenone, Upstream Products: Benzil, Phenylacetyl chloride, benzene; Downstream Products: 2-Methyl-4,5-diphenylthiazole, Methyl diphenylacetate, Azobenzene-4,4'-dicarboxylic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-Phenylacetophenone (CAS 451-40-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3199-2 (accessed 2026-11-06).

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