(E)-4-(4-Ethoxyphenyl)-4-oxobut-2-enoic acid

反-3-(4-乙氧基苯甲酰基)丙烯酸

Also known as: 3-(4-Ethoxybenzoyl)acrylic acid, trans-3-(4-Ethoxybenzoyl)acrylic acid, 4-(4-Ethoxyphenyl)-4-oxo-2-butenoic acid, (4-Ethoxybenzoyl)-3-acrylic acid, 2-Butenoic acid, 4-(4-ethoxyphenyl)-4-oxo-, (2E)-, MFCD00075337

(E)-4-(4-Ethoxyphenyl)-4-oxobut-2-enoic acid (CAS 29582-31-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H12O4 and a molecular weight of 220.22100 g/mol. It is also known as 3-(4-Ethoxybenzoyl)acrylic acid, trans-3-(4-Ethoxybenzoyl)acrylic acid and 4-(4-Ethoxyphenyl)-4-oxo-2-butenoic acid. Key properties include a melting point of 140-144ºC, a boiling point of 398.2ºC at 760mmHg, a density of 1.205g/cm3 and a flash point of 155.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
29582-31-8
Jingsj CID
J-26278-5
Molecular Formula
C12H12O4
Chinese Name
反-3-(4-乙氧基苯甲酰基)丙烯酸
Molecular Weight
220.22100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point140-144ºC
Boiling Point398.2ºC at 760mmHg
Density1.205g/cm3
Flash Point155.2ºC

Frequently Asked Questions

What is the CAS number of (E)-4-(4-Ethoxyphenyl)-4-oxobut-2-enoic acid?

The CAS number of (E)-4-(4-Ethoxyphenyl)-4-oxobut-2-enoic acid is 29582-31-8.

What are the molecular formula and molecular weight of (E)-4-(4-Ethoxyphenyl)-4-oxobut-2-enoic acid?

(E)-4-(4-Ethoxyphenyl)-4-oxobut-2-enoic acid has molecular formula C12H12O4 and molecular weight 220.22100 g/mol.

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

Last updated:

How to cite: Jingsj. "(E)-4-(4-Ethoxyphenyl)-4-oxobut-2-enoic acid (CAS 29582-31-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26278-5 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.