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4-Fluorocinnamic acid

Also known as: p-Fluorocinnamic acid, (2E)-3-(4-Fluorophenyl)acrylic acid, 3-(4-Fluorophenyl)acrylic acid, trans-4-Fluorocinnamic acid, para-Fluorocinnamic acid, E-3-(4-Fluorophenyl)prop-2-enoic acid

4-Fluorocinnamic acid (CAS 459-32-5) 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. Key properties include a melting point of 209-210 °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.
459-32-5
Jingsj CID
J-1503492-1
Molecular Formula
C9H7FO2
Molecular Weight
166.149 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point209-210 °C(lit.)
Boiling Point281.6±15.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point124.1±20.4 °C
Exact Mass166.043015
PSA37.30000
LogP2.42
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.591

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Fluorocinnamic acid?

The CAS number of 4-Fluorocinnamic acid is 459-32-5.

What are the molecular formula and molecular weight of 4-Fluorocinnamic acid?

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

What are the upstream and downstream products of 4-Fluorocinnamic acid?

For 4-Fluorocinnamic acid, Upstream Products: Malonic acid, 4-Fluorobenzaldehyde, 4-Fluoroiodobenzene; Downstream Products: 4-Fluorobenzaldehyde, 3-(4-Fluorophenyl)propionic acid, 3-Phenylpropionic acid.

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

Last updated:

How to cite: Jingsj. "4-Fluorocinnamic acid (CAS 459-32-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503492-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.