4-Fluoro-3-hydroxybenzoic acid
Also known as: 3-Hydroxy-4-fluorobenzoic acid, Benzoic acid, 4-fluoro-3-hydroxy-, 5-Carboxy-2-fluorophenol, 4-Fluor-3-hydroxybenzoesure
4-Fluoro-3-hydroxybenzoic acid (CAS 51446-31-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5FO3 and a molecular weight of 156.111 g/mol. Key properties include a melting point of 214-218 °C(lit.), a boiling point of 324.0±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 149.7±23.7 °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.
- 51446-31-2
- Jingsj CID
- J-9481-5
- Molecular Formula
- C7H5FO3
- Molecular Weight
- 156.111 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 214-218 °C(lit.) |
|---|---|
| Boiling Point | 324.0±27.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 149.7±23.7 °C |
| Exact Mass | 156.022278 |
| PSA | 57.53000 |
| LogP | 1.85 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.585 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918290000 |
|---|---|
| Summary | HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Fluoro-3-hydroxybenzoic acid?
The CAS number of 4-Fluoro-3-hydroxybenzoic acid is 51446-31-2.
What are the molecular formula and molecular weight of 4-Fluoro-3-hydroxybenzoic acid?
4-Fluoro-3-hydroxybenzoic acid has molecular formula C7H5FO3 and molecular weight 156.111 g/mol.
Is 4-Fluoro-3-hydroxybenzoic acid hazardous?
4-Fluoro-3-hydroxybenzoic 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 4-Fluoro-3-hydroxybenzoic acid?
For 4-Fluoro-3-hydroxybenzoic acid, Upstream Products: 2-Fluoro-5-(trifluoromethyl)phenol, 4-chloro-7-fluoro-6-methoxyquinazoline; Downstream Products: 4-Fluoro-3-methoxybenzoic acid, Methyl 4-fluoro-3-methoxybenzoate, Ethyl 4-fluoro-3-hydroxybenzoate.
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-Fluoro-3-hydroxybenzoic acid (CAS 51446-31-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9481-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.