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

3-(4-氯苯甲酰)丙烯酸

Also known as: 3-(4-Chlorobenzoyl)acrylic acid, (E)-4-(4-chlorophenyl)-4-oxo-2-butenoic acid, p-Chlorobenzoylacrylic acid, trans-3-(4-chlorobenzoyl)acrylic acid, MFCD00041465, EINECS 228-443-7

(E)-4-(4-chlorophenyl)-4-oxobut-2-enoic acid (CAS 6269-33-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H7ClO3 and a molecular weight of 210.61400 g/mol. It is also known as 3-(4-Chlorobenzoyl)acrylic acid, (E)-4-(4-chlorophenyl)-4-oxo-2-butenoic acid and p-Chlorobenzoylacrylic acid. Key properties include a melting point of 130-134 °C(lit.), a boiling point of 379.5ºC at 760 mmHg, a density of 1.366g/cm3 and a flash point of 183.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6269-33-6
Jingsj CID: J-8127-8
Molecular Formula: C₁₀H₇ClO₃
Chinese Name: 3-(4-氯苯甲酰)丙烯酸
Molecular Weight: 210.61400 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	130-134 °C(lit.)
Boiling Point	379.5ºC at 760 mmHg
Density	1.366g/cm3
Flash Point	183.3ºC

Frequently Asked Questions

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

The CAS number of (E)-4-(4-chlorophenyl)-4-oxobut-2-enoic acid is 6269-33-6.

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

(E)-4-(4-chlorophenyl)-4-oxobut-2-enoic acid has molecular formula C10H7ClO3 and molecular weight 210.61400 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(E)-4-(4-chlorophenyl)-4-oxobut-2-enoic acid (CAS 6269-33-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8127-8 (accessed 2026-10-24).

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