(2E)-3-(4-Chloro-2-fluorophenyl)acrylic acid

4-氯-2-氟肉桂酸

Also known as: 4-Chloro-2-fluorocinnamic acid, 3-(4-Chloro-2-fluorophenyl)acrylic acid, (E)-3-(4-Chloro-2-fluorophenyl)acrylic acid, 3-(4-Chloro-2-fluorophenyl)prop-2-enoic acid, (2E)-3-(4-Chloro-2-fluorophenyl)prop-2-enoic acid, trans-4-Chloro-2-fluorocinnamic acid, MFCD00143287

(2E)-3-(4-Chloro-2-fluorophenyl)acrylic acid (CAS 202982-65-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H6ClFO2 and a molecular weight of 200.594 g/mol. It is also known as 4-Chloro-2-fluorocinnamic acid, 3-(4-Chloro-2-fluorophenyl)acrylic acid and (E)-3-(4-Chloro-2-fluorophenyl)acrylic acid. Key properties include a melting point of 213-216ºC(lit.), a boiling point of 316.4±27.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 145.1±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
202982-65-8
Jingsj CID
J-17197-5
Molecular Formula
C9H6ClFO2
Chinese Name
4-氯-2-氟肉桂酸
Molecular Weight
200.594 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point213-216ºC(lit.)
Boiling Point316.4±27.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point145.1±23.7 °C

Frequently Asked Questions

What is the CAS number of (2E)-3-(4-Chloro-2-fluorophenyl)acrylic acid?

The CAS number of (2E)-3-(4-Chloro-2-fluorophenyl)acrylic acid is 202982-65-8.

What are the molecular formula and molecular weight of (2E)-3-(4-Chloro-2-fluorophenyl)acrylic acid?

(2E)-3-(4-Chloro-2-fluorophenyl)acrylic acid has molecular formula C9H6ClFO2 and molecular weight 200.594 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-Chloro-2-fluorophenyl)acrylic acid (CAS 202982-65-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17197-5 (accessed 2026-10-24).

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