Molecular properties
- Formula
- O2S
- Molar mass
- 64.06 g·mol−1
- Exact mass
- 63.9619 Da
- 0
- PubChem CID
- 1119
Molecule record
sulfur dioxide
O2S
64.06 g/mol
Loading structure
Functional groups
No functional-group assignment has been curated yet.
Physical properties
No source-backed physical properties are curated for this molecule yet.
Common names and synonyms
- (oxo-lambda4-sulfanylidene)oxidane
- 0UZA3422Q4
- 7446-09-5
- CHEBI:18422
- DTXCID009672
- DTXSID6029672
- E-220
- FEMA No. 3039
Show all 24 synonyms
- Fermenicide liquid
- Fermenicide powder
- INS NO.220
- INS-220
- RefChem:6693
- SULFUROXIDE
- Schwefeldioxid
- Schwefeldioxyd
- Siarki dwutlenek
- Sulfur dioxide (SO2)
- Sulfur oxide (SO2)
- Sulfur superoxide
- Sulfurous acid anhydride
- Sulfurous anhydride
- Sulfurous oxide
- sulphur dioxide
Structure identifiers
- Canonical SMILES
- O=S=O
- Isomeric SMILES
- O=S=O
- InChI
- InChI=1S/O2S/c1-3-2
- InChIKey
- RAHZWNYVWXNFOC-UHFFFAOYSA-N
- PubChem CID
- 1119
Spectroscopy
Tabs appear only for spectra stored with clear provenance.
No redistributable or simulated spectroscopy record is attached yet.
Simulated NMR
On-demand educational prediction for sulfur dioxide; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for sulfur dioxide; not experimental data.
Sources
Molecule identity
Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.