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(E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid

反式-3-(4-甲氧基苯甲酰)丙烯酸

Also known as: 3-(4-methoxybenzoyl)acrylic acid, trans-3-(4-methoxybenzoyl)acrylic acid, 4-(4-methoxyphenyl)-4-oxobut-2-enoic acid, NSC 25331, β-4-methoxybenzoylacrylic acid, 3-(p-methoxybenzoyl)acrylic acid, 3-p-anisoylacrylic acid, AKOS 90960, MFCD00020486

(E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid (CAS 5711-41-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H10O4 and a molecular weight of 206.19500 g/mol. It is also known as 3-(4-methoxybenzoyl)acrylic acid, trans-3-(4-methoxybenzoyl)acrylic acid and 4-(4-methoxyphenyl)-4-oxobut-2-enoic acid. Key properties include a melting point of 132-136 °C(lit.), a boiling point of 389.3ºC at 760 mmHg, a density of 1.24g/cm3 and a flash point of 155.2ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5711-41-1
Jingsj CID
J-38856-0
Molecular Formula
C11H10O4
Chinese Name
反式-3-(4-甲氧基苯甲酰)丙烯酸
Molecular Weight
206.19500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point132-136 °C(lit.)
Boiling Point389.3ºC at 760 mmHg
Density1.24g/cm3
Flash Point155.2ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of (E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid?

The CAS number of (E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid is 5711-41-1.

What are the molecular formula and molecular weight of (E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid?

(E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid has molecular formula C11H10O4 and molecular weight 206.19500 g/mol.

Is (E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid hazardous?

(E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "(E)-4-(4-methoxyphenyl)-4-oxo-2-butenoic acid (CAS 5711-41-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38856-0 (accessed 2026-10-23).

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