C4H8O2S
120.17 g/mol
Industrial ChemicalWarning
Tetrahydrothiophene 1,1-dioxide
CAS126-33-0EC204-783-1
Category
Industrial Chemical
Compound Class
Heterocycle
Primary Use
solvent for extractive distillation and chemical reactions
Tetrahydrothiophene 1,1-dioxide, commonly known as sulfolane, is an organosulfur compound used as a solvent in chemical industry processes. It is primarily employed for extractive distillation and as a reaction medium.
solvent for extractive distillationsolvent for chemical reactions
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Tri-isobutylphosphate
CAS126-71-6
Anti-foaming agent and hydraulic fluid
ReferenceSame Category
Tri-N-butyl phosphate
CAS126-73-8
plasticizer and solvent extraction agent
ReferenceSame Category
Tetramethyl decynediol
CAS126-86-3
Non-ionic surfactant and wetting agent
ReferenceSame Category
Chloroprene
CAS126-99-8
Manufacture of synthetic rubber neoprene
Safety Reference
Warning
H302Harmful if swallowed
H360May damage fertility or the unborn child
H320Causes eye irritation
H361Suspected of damaging fertility or the unborn child
Customs Tariff Classification
The international HS code for Tetrahydrothiophene 1,1-dioxide (CAS 126-33-0) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
2934 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
thiolane 1,1-dioxide
InChIKey
HXJUTPCZVOIRIF-UHFFFAOYSA-N
SMILES
C1CCS(=O)(=O)C1
Synonyms (45)
- QXB
- 1,1-Dioxothiolan
- 1-Thiolane-1,1-dione
- 1lambda6-thiolane-1,1-dione
- Bondelane A
- Bondolane A
- Cyclic tetramethylene sulfone
- Cyclotetramethylene sulfone
- Dihydrobutadiene sulfone
- Dihydrobutadiene sulphone
- Dioxothiolan
- Sulfalone
- Sulfolan
- Sulfolane
- Sulpholane
- Sulphoxaline
- Tetrahydrothiofen-1,1-dioxid
- Tetrahydrothiophene 1-dioxide
- Tetrahydrothiophene dioxide
- Tetramethylene sulfone
- Thiacyclopentane dioxide
- Thiocyclopentane-1,1-dioxide
- Thiophan sulfone
- Thiophane 1,1-dioxide
- Thiophane dioxide
- sulpholan
- tetramethylene sufone
- tetramethylenesulphone
- thiolane 1,1-dioxide
- thiolane-1,1-dione
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