Diphenyl sulfide
Also known as: Phenyl sulfide, Diphenyl sulphide, Phenyl thioether, 1,1'-Thiobis(benzene), 1,1'-Sulfanediyldibenzene, Diphenyl monosulfide, Diphenyl thioether, Phenylthiobenzene, Benzene sulfide
Diphenyl sulfide (CAS 139-66-2) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C12H10S and a molecular weight of 186.273 g/mol. Key properties include a melting point of −40 °C(lit.), a boiling point of 296.0±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 128.4±15.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 139-66-2
- Jingsj CID
- J-32105-1
- Molecular Formula
- C12H10S
- Molecular Weight
- 186.273 g/mol
- Category
- Ethers
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −40 °C(lit.) |
|---|---|
| Boiling Point | 296.0±9.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 128.4±15.4 °C |
| Exact Mass | 186.050323 |
| PSA | 25.30000 |
| LogP | 4.45 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.642 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H410 — Very toxic to aquatic life with long lasting effects
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 sulfide?
The CAS number of Diphenyl sulfide is 139-66-2.
What are the molecular formula and molecular weight of Diphenyl sulfide?
Diphenyl sulfide has molecular formula C12H10S and molecular weight 186.273 g/mol.
Is Diphenyl sulfide hazardous?
Diphenyl sulfide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H410 — Very toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of Diphenyl sulfide?
For Diphenyl sulfide, Upstream Products: Iodobenzene, Bromobenzene, Diphenyl disulfide; Downstream Products: 3,4-Dihydroisoquinoline, Diphenyl sulfoxide, Bis[α,α-bis(trifluoromethyl)benzenemethanolato]diphenylsulfur.
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 sulfide (CAS 139-66-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32105-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.