Sulfolane

Sulfolane is an organic compound with the molecular formula C4H8O2S.

Formula
C4H8O2S
Molar mass
120.17 g/mol
Also known as
thiolane 1,1-dioxide, Tetrahydrothiophene 1,1-dioxide, Tetramethylene sulfone, Sulfolan, 1,1-Dioxothiolan, Sulpholane, Thiophene, tetrahydro-, 1,1-dioxide

Overview

Sulfolane is an organic compound with the molecular formula C4H8O2S.

Identifiers

Formula
C4H8O2S
Molar mass
120.17 g/mol
Also known as
thiolane 1,1-dioxide, Tetrahydrothiophene 1,1-dioxide, Tetramethylene sulfone, Sulfolan, 1,1-Dioxothiolan, Sulpholane, Thiophene, tetrahydro-, 1,1-dioxide
Chemical identifiers
SMILES
C1CCS(=O)(=O)C1
InChI
InChI=1S/C4H8O2S/c5-7(6)3-1-2-4-7/h1-4H2
PubChem CID
31347

Properties

Melting Point
27.4-27.8 °C
Boiling Point
285 °C
Data availability

Not published: Density, Solubility.

References

  1. PubChem Compound Summary: Sulfolane (CID 31347)National Center for Biotechnology Information · PubChem

    Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.

  2. Hazardous Substances Data Bank (HSDB): Sulfolane — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/31347#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th Edition, Whitehouse Station, NJ: Merck and Co., Inc., 2001., p. 1597

  3. Hazardous Substances Data Bank (HSDB): Sulfolane — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/31347#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th Edition, Whitehouse Station, NJ: Merck and Co., Inc., 2001., p. 1597