Diphenyl sulfone
Also known as: Phenyl sulfone, Phenyl sulphone, 1,1'-Sulfonyldibenzene, Sulfonyldibenzene, Diphenyl sulphone, 1,1'-sulfonylbisbenzene, Difenylsulfon, Sulfone, diphenyl, Benzenesulfonylbenzene
Diphenyl sulfone (CAS 127-63-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H10O2S and a molecular weight of 218.272 g/mol. Key properties include a melting point of 123-129 °C(lit.), a boiling point of 378.5±11.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 226.8±11.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. It is listed by 1 supplier, from 0.36 to 100.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 127-63-9
- Jingsj CID
- J-49527-7
- Molecular Formula
- C12H10O2S
- Molecular Weight
- 218.272 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 99% 500g | ¥180.00 | $0.05 /gBest ¥0.36/g CNY | CN China MOQ 500g | |
In Stock | 99% 100g | ¥70.00 | $0.1 /g ¥0.70/g CNY | CN China MOQ 100g | |
In Stock | 分析标准品，>99.5% 250mg | ¥200.00 | $0.12 /mg ¥0.80/mg CNY | CN China MOQ 250mg |
Physicochemical Properties
| Melting Point | 123-129 °C(lit.) |
|---|---|
| Boiling Point | 378.5±11.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 226.8±11.9 °C |
| Exact Mass | 218.040146 |
| PSA | 42.52000 |
| LogP | 2.40 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.593 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2904100000 |
|---|---|
| Summary | 2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Diphenyl sulfone?
The CAS number of Diphenyl sulfone is 127-63-9.
What are the molecular formula and molecular weight of Diphenyl sulfone?
Diphenyl sulfone has molecular formula C12H10O2S and molecular weight 218.272 g/mol.
Which suppliers offer Diphenyl sulfone?
1 supplier(s) listed; reference unit price ¥0.36–100.00 /g.
Is Diphenyl sulfone hazardous?
Diphenyl sulfone has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Diphenyl sulfone?
For Diphenyl sulfone, Upstream Products: Diphenyl sulfide, 4,4'-Dichlorodiphenyl sulfone, Benzenesulfinic acid; Downstream Products: 1-Phenylpiperidine, 1-Methyl-4-phenylpiperazine, Diphenylselenium dichloride.
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 sulfone (CAS 127-63-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49527-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.