4-(Difluoromethyl)benzoic acid
Also known as: 4-(Difluoromethyl)benzoic acid, 4-Carboxybenzal fluoride, alpha,alpha-Difluoro-p-toluic acid, p-Difluoromethylbenzoic acid, Benzoic acid, 4-(difluoromethyl)-
4-(Difluoromethyl)benzoic acid (CAS 55805-21-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6F2O2 and a molecular weight of 172.129 g/mol. Key properties include a melting point of 203-205ºC, a boiling point of 271.6±35.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 118.1±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 55805-21-5
- Jingsj CID
- J-1410026-6
- Molecular Formula
- C8H6F2O2
- Molecular Weight
- 172.129 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 203-205ºC |
|---|---|
| Boiling Point | 271.6±35.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 118.1±25.9 °C |
| Exact Mass | 172.033585 |
| PSA | 37.30000 |
| LogP | 2.27 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.503 |
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 4-(Difluoromethyl)benzoic acid?
The CAS number of 4-(Difluoromethyl)benzoic acid is 55805-21-5.
What are the molecular formula and molecular weight of 4-(Difluoromethyl)benzoic acid?
4-(Difluoromethyl)benzoic acid has molecular formula C8H6F2O2 and molecular weight 172.129 g/mol.
What are the upstream and downstream products of 4-(Difluoromethyl)benzoic acid?
For 4-(Difluoromethyl)benzoic acid, Upstream Products: 4-(Difluoromethyl)benzonitrile, Lead dioxide, 4-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-(Difluoromethyl)benzoic acid (CAS 55805-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1410026-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.