2,4-Difluorobenzoic acid
Also known as: 2,4-DFBA, Benzoic acid, 2,4-difluoro-, NSC 10312, QVR BF DF, RARECHEM AL BO 0245, 4-Difluorobenzoic acid, 2,4-Difluorobenzonicacid, o,p-difluorobenzoic acid
2,4-Difluorobenzoic acid (CAS 1583-58-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4F2O2 and a molecular weight of 158.10 g/mol. Key properties include a melting point of 188-190 °C(lit.), a boiling point of 239.5±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 98.6±21.8 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1583-58-0
- Jingsj CID
- J-3340-9
- Molecular Formula
- C7H4F2O2
- Molecular Weight
- 158.10 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 188-190 °C(lit.) |
|---|---|
| Boiling Point | 239.5±20.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 98.6±21.8 °C |
| Exact Mass | 158.017929 |
| PSA | 37.30000 |
| LogP | 2.07 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.513 |
| Additional Property | SOLUBLE |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 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 2,4-Difluorobenzoic acid?
The CAS number of 2,4-Difluorobenzoic acid is 1583-58-0.
What are the molecular formula and molecular weight of 2,4-Difluorobenzoic acid?
2,4-Difluorobenzoic acid has molecular formula C7H4F2O2 and molecular weight 158.10 g/mol.
Is 2,4-Difluorobenzoic acid hazardous?
2,4-Difluorobenzoic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2,4-Difluorobenzoic acid?
For 2,4-Difluorobenzoic acid, Upstream Products: Carbon dioxide, 2,4-Difluoroiodobenzene, 2',4'-Difluoroacetophenone; Downstream Products: 4-Fluoro-2-hydroxybenzoic acid, 2-Fluoro-4-hydroxybenzoic acid, 2-Fluorobenzoic 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. "2,4-Difluorobenzoic acid (CAS 1583-58-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3340-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.