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2-oxo-4-phenylbut-3-enoic acid

Also known as: benzylidenepyruvic acid, 2-oxo-4-phenyl-3-butenoic acid, (E)-2-oxo-4-phenylbut-3-enoic acid, 3-Butenoic acid, 2-oxo-4-phenyl-

2-oxo-4-phenylbut-3-enoic acid (CAS 17451-19-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O4 and a molecular weight of 194.18600 g/mol. Key properties include a boiling point of 319.7ºC at 760mmHg, a density of 1.27g/cm3 and a flash point of 161.3ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
17451-19-3
Jingsj CID
J-1422017-8
Molecular Formula
C10H10O4
Molecular Weight
194.18600 g/mol
Category
Organic Acids
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point319.7ºC at 760mmHg
Density1.27g/cm3
Flash Point161.3ºC
Exact Mass176.04700
PSA54.37000
LogP1.35350
Vapor Pressure0.000139mmHg at 25°C
Refractive Index1.614

Customs & Trade Information

HS Code2918300090
Summary2918300090 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 2-oxo-4-phenylbut-3-enoic acid?

The CAS number of 2-oxo-4-phenylbut-3-enoic acid is 17451-19-3.

What are the molecular formula and molecular weight of 2-oxo-4-phenylbut-3-enoic acid?

2-oxo-4-phenylbut-3-enoic acid has molecular formula C10H10O4 and molecular weight 194.18600 g/mol.

What are the upstream and downstream products of 2-oxo-4-phenylbut-3-enoic acid?

For 2-oxo-4-phenylbut-3-enoic acid, Upstream Products: Benzaldehyde, Pyruvic acid, Cinnamic acid; Downstream Products: 3-Phenylpropan-1-ol, Benzaldehyde, Pyruvic 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-oxo-4-phenylbut-3-enoic acid (CAS 17451-19-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1422017-8 (accessed 2026-11-09).

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