2-Fluorocinnamic acid

邻氟肉桂酸

Also known as: 3-(2-Fluorophenyl)acrylic acid, (E)-3-(2-fluorophenyl)acrylic acid, (2E)-3-(2-fluorophenyl)-2-propenoic acid, 2-Fluorocinnamic acid, predominantly trans, o-Fluorocinnamic acid, 2-Propenoic acid, 3-(2-fluorophenyl)-, (2E)-

2-Fluorocinnamic acid (CAS 451-69-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H7FO2 and a molecular weight of 166.149 g/mol. It is also known as 3-(2-Fluorophenyl)acrylic acid, (E)-3-(2-fluorophenyl)acrylic acid and (2E)-3-(2-fluorophenyl)-2-propenoic acid. Key properties include a melting point of 178-180 °C(lit.), a boiling point of 281.6±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 124.1±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
451-69-4
Jingsj CID
J-6585-4
Molecular Formula
C9H7FO2
Chinese Name
邻氟肉桂酸
Molecular Weight
166.149 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point178-180 °C(lit.)
Boiling Point281.6±15.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point124.1±20.4 °C

Frequently Asked Questions

What is the CAS number of 2-Fluorocinnamic acid?

The CAS number of 2-Fluorocinnamic acid is 451-69-4.

What are the molecular formula and molecular weight of 2-Fluorocinnamic acid?

2-Fluorocinnamic acid has molecular formula C9H7FO2 and molecular weight 166.149 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Fluorocinnamic acid (CAS 451-69-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6585-4 (accessed 2026-10-22).

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