Diphenyl sulfoxide
Also known as: Phenyl sulfoxide, Sulfinyldibenzene, 1,1'-Sulfinyldibenzene, 1,1'-sulfinylbisbenzene, (benzenesulfinyl)benzene, Diphenyl sulphoxide
Diphenyl sulfoxide (CAS 945-51-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H10OS and a molecular weight of 202.272 g/mol. Key properties include a melting point of 69-71 °C(lit.), a boiling point of 357.6±11.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 170.1±19.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 945-51-7
- Jingsj CID
- J-1993017-0
- Molecular Formula
- C12H10OS
- Molecular Weight
- 202.272 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 69-71 °C(lit.) |
|---|---|
| Boiling Point | 357.6±11.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 170.1±19.3 °C |
| Exact Mass | 202.045242 |
| PSA | 36.28000 |
| LogP | 2.06 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.672 |
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Diphenyl sulfoxide?
The CAS number of Diphenyl sulfoxide is 945-51-7.
What are the molecular formula and molecular weight of Diphenyl sulfoxide?
Diphenyl sulfoxide has molecular formula C12H10OS and molecular weight 202.272 g/mol.
What are the upstream and downstream products of Diphenyl sulfoxide?
For Diphenyl sulfoxide, Upstream Products: Diphenyl sulfide, benzene, Bromobenzene; Downstream Products: 2-(Phenylsulfonyl)-1,4-benzenediol, 2-Phenyl-1,4-benzoquinone, Triphenylsulfonium bromide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diphenyl sulfoxide (CAS 945-51-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993017-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.