C2H4O3S
108.12 g/mol
Electronic ChemicalDanger
Ethylene sulfite
CAS3741-38-6EC223-131-7
Category
Electronic Chemical
Compound Class
Heterocycle
Primary Use
Battery electrolyte additive
Ethylene sulfite is a cyclic sulfite compound used as an additive in battery electrolytes. It is identified by the structure This compound.
Battery electrolyte additive
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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Read moreSafety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H312Harmful in contact with skin
H319Causes serious eye irritation
H332Harmful if inhaled
H341Suspected of causing genetic defects
Customs Tariff Classification
The international HS code for Ethylene sulfite (CAS 3741-38-6) is 2920.90.
HS code (international, 6-digit)
2920.90
EU CN code (8-digit)
2920 90 70
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
1,3,2-dioxathiolane 2-oxide
InChIKey
WDXYVJKNSMILOQ-UHFFFAOYSA-N
SMILES
C1COS(=O)O1
Synonyms (14)
- 1,2-Dioxathiolane, 2-oxide
- 1,2-Ethylene sulfite
- 1,3,2-Dioxathiolan-2-oxide
- 1,3,2-Dioxathiolane 2-oxide
- Cyclic ethylene sulfite
- Ethylene sulfite
- Ethylene sulphite
- GLYCOL SULPHITE
- Glycol sulfite
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