4-Chloro-α-cyanocinnamic acid

4-氯-α-氰基肉桂酸

Also known as: 3-(4-Chlorophenyl)-2-cyanoacrylic acid, (2E)-3-(4-Chlorophenyl)-2-cyano-2-propenoic acid, (2E)-3-(4-Chlorophenyl)-2-cyanoacrylic acid, trans-4-Chloro-alpha-cyanocinnamic acid, trans-3-(4-Chlorophenyl)-2-cyanoprop-2-enoic acid, p-Chloro-α-cyanocinnamic acid, MFCD02317172

4-Chloro-α-cyanocinnamic acid (CAS 20374-46-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H6ClNO2 and a molecular weight of 207.613 g/mol. It is also known as 3-(4-Chlorophenyl)-2-cyanoacrylic acid, (2E)-3-(4-Chlorophenyl)-2-cyano-2-propenoic acid and (2E)-3-(4-Chlorophenyl)-2-cyanoacrylic acid. Key properties include a melting point of 191-193ºC, a boiling point of 377.0±32.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 181.8±25.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20374-46-3
Jingsj CID
J-89689-0
Molecular Formula
C10H6ClNO2
Chinese Name
4-氯-α-氰基肉桂酸
Molecular Weight
207.613 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point191-193ºC
Boiling Point377.0±32.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point181.8±25.1 °C

Frequently Asked Questions

What is the CAS number of 4-Chloro-α-cyanocinnamic acid?

The CAS number of 4-Chloro-α-cyanocinnamic acid is 20374-46-3.

What are the molecular formula and molecular weight of 4-Chloro-α-cyanocinnamic acid?

4-Chloro-α-cyanocinnamic acid has molecular formula C10H6ClNO2 and molecular weight 207.613 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Chloro-α-cyanocinnamic acid (CAS 20374-46-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-89689-0 (accessed 2026-10-23).

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