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4-Fluorobenzoic acid

Also known as: p-fluorobenzoic acid, 4-fluoro-benzoic acid, p-fluorobenzoic acid, Benzoic acid, 4-fluoro-, Benzoic acid, p-fluoro-, p-FC6H4CO2H, MFCD00002530, EINECS 207-259-0

4-Fluorobenzoic acid (CAS 456-22-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5FO2 and a molecular weight of 140.112 g/mol. Key properties include a melting point of 184 °C, a boiling point of 253.7±13.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 107.2±19.8 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
456-22-4
Jingsj CID
J-14768-2
Molecular Formula
C7H5FO2
Molecular Weight
140.112 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point184 °C
Boiling Point253.7±13.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point107.2±19.8 °C
Exact Mass140.027359
PSA37.30000
LogP2.07
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.537

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H318 — Causes serious eye damage

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-Fluorobenzoic acid?

The CAS number of 4-Fluorobenzoic acid is 456-22-4.

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

4-Fluorobenzoic acid has molecular formula C7H5FO2 and molecular weight 140.112 g/mol.

Is 4-Fluorobenzoic acid hazardous?

4-Fluorobenzoic acid has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H318 — Causes serious eye damage.

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

For 4-Fluorobenzoic acid, Upstream Products: Carbon dioxide, 2-(4-Fluorophenyl)-5,5-dimethyl-1,3,2-dioxaborinane, 4-Fluorotoluene; Downstream Products: 3,4-Difluorobenzoic acid, 4-Fluoro-3-methylbenzoic acid, 4-Fluoro-2-methylbenzoic 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-Fluorobenzoic acid (CAS 456-22-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14768-2 (accessed 2026-11-09).

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