4,4'-Difluorodiphenyl sulfone
Also known as: Bis(4-fluorophenyl) sulfone, 4,4'-Difluorodiphenylsulfone, 4-Fluorophenyl sulfone, 1,1'-sulfonylbis(4-fluorobenzene), 1-fluoro-4-[(4-fluorophenyl)sulfonyl]benzene, Bis(p-fluorophenyl) sulfone, p-Fluorophenyl sulfone, 4-Fluorophenyl sulphone
4,4'-Difluorodiphenyl sulfone (CAS 383-29-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H8F2O2S and a molecular weight of 254.253 g/mol. Key properties include a melting point of 98-100 °C(lit.), a boiling point of 368.0±27.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 176.3±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 383-29-9
- Jingsj CID
- J-8232-6
- Molecular Formula
- C12H8F2O2S
- Molecular Weight
- 254.253 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 98-100 °C(lit.) |
|---|---|
| Boiling Point | 368.0±27.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 176.3±23.7 °C |
| Exact Mass | 254.021301 |
| PSA | 42.52000 |
| LogP | 3.40 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.563 |
Customs & Trade Information
| HS Code | 2904909090 |
|---|---|
| Summary | HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4,4'-Difluorodiphenyl sulfone?
The CAS number of 4,4'-Difluorodiphenyl sulfone is 383-29-9.
What are the molecular formula and molecular weight of 4,4'-Difluorodiphenyl sulfone?
4,4'-Difluorodiphenyl sulfone has molecular formula C12H8F2O2S and molecular weight 254.253 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,4'-Difluorodiphenyl sulfone (CAS 383-29-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8232-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.