Sulfolane
Also known as: Tetramethylene sulfone, Tetrahydrothiophene 1,1-dioxide, Thiolane-1,1-dioxide, 2,3,4,5-Tetrahydrothiophene-1,1-dioxide, Sulpholane, Tetrahydrothiophene S,S-dioxide, 1,1-Dioxidetetrahydrothiophene, Thioxyclopentane-1,1-dioxide
Sulfolane (CAS 126-33-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H8O2S and a molecular weight of 120.170 g/mol. Key properties include a melting point of 27.4 °C, a boiling point of 285.6±8.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 165.6±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 126-33-0
- Jingsj CID
- J-35892-9
- Molecular Formula
- C4H8O2S
- Molecular Weight
- 120.170 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 27.4 °C |
|---|---|
| Boiling Point | 285.6±8.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 165.6±0.0 °C |
| Exact Mass | 120.024498 |
| PSA | 42.52000 |
| LogP | -0.77 |
| Additional Property | 4.2 (vs air) |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.486 |
| Additional Property | soluble |
| Additional Property | 26℃ |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Sulfolane?
The CAS number of Sulfolane is 126-33-0.
What are the molecular formula and molecular weight of Sulfolane?
Sulfolane has molecular formula C4H8O2S and molecular weight 120.170 g/mol.
Is Sulfolane hazardous?
Sulfolane has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of Sulfolane?
For Sulfolane, Upstream Products: Tetrahydrothiophene, Tetrahydrothiophene 1-oxide, 1,4-Dibromobutane; Downstream Products: 1-Fluoro-4-nitrobenzene, 2-Chloro-1-fluoro-4-nitrobenzene, Perfluorobutanesulfonyl fluoride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Sulfolane (CAS 126-33-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35892-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.