(2E)-3-(4-Chlorophenyl)prop-2-enoic acid

反式-4-氯肉桂酸

Also known as: 4-chlorocinnamic acid, trans-4-chlorocinnamic acid, (E)-3-(4-chlorophenyl)acrylic acid, p-chlorocinnamic acid, trans-p-chlorocinnamic acid, (2E)-3-(4-chlorophenyl)-2-propenoic acid, NSC 52172, RARECHEM BK HC T318

(2E)-3-(4-Chlorophenyl)prop-2-enoic acid (CAS 940-62-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H7ClO2 and a molecular weight of 182.60400 g/mol. It is also known as 4-chlorocinnamic acid, trans-4-chlorocinnamic acid and (E)-3-(4-chlorophenyl)acrylic acid. Key properties include a melting point of 248-250ºC(lit.), a boiling point of 325.3ºC at 760mmHg, a density of 1.332g/cm3 and a flash point of 150.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
940-62-5
Jingsj CID
J-1071544-2
Molecular Formula
C9H7ClO2
Chinese Name
反式-4-氯肉桂酸
Molecular Weight
182.60400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point248-250ºC(lit.)
Boiling Point325.3ºC at 760mmHg
Density1.332g/cm3
Flash Point150.5ºC

Frequently Asked Questions

What is the CAS number of (2E)-3-(4-Chlorophenyl)prop-2-enoic acid?

The CAS number of (2E)-3-(4-Chlorophenyl)prop-2-enoic acid is 940-62-5.

What are the molecular formula and molecular weight of (2E)-3-(4-Chlorophenyl)prop-2-enoic acid?

(2E)-3-(4-Chlorophenyl)prop-2-enoic acid has molecular formula C9H7ClO2 and molecular weight 182.60400 g/mol.

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

Last updated:

How to cite: Jingsj. "(2E)-3-(4-Chlorophenyl)prop-2-enoic acid (CAS 940-62-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1071544-2 (accessed 2026-10-24).

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