Ozone
O347.998 g/mol Calculated
Also called triatomic oxygen.
Three oxygens instead of two: the sharp smell after a lightning strike or near a photocopier. High up it blocks ultraviolet; at ground level it is smog.
Sources and notes
- The introductionfrom sourceMoleculeFinder curated
- Other namesfrom sourceWikidataIts English label and aliases on Wikidata.
- Formula and weightcomputedPubChem
- 2D drawingcomputedPubChem structure, drawn by RDKit
- 3D modelfrom sourcePubChem 3D conformerLoaded after the page has painted, and on a phone only when you ask for it; the 2D drawing shows until it arrives.
Properties and sources
Calculated by PubChem
- Molecular formula
- O3
- Molecular weight
- 47.998 g/mol
- XLogP3octanol/water, log units
- −1.7
- Polar surface areatopological
- 41.1 Ų
- H-bond donors
- 0
- H-bond acceptors
- 2
- Rotatable bonds
- 0
- Complexity
- 4
Reported Hazard label (GHS), ECHA via PubChem
Danger Oxidizer pictogram (GHS03), Corrosive pictogram (GHS05), Toxic pictogram (GHS06), Irritant pictogram (GHS07), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H270, H314, H315, H318, H319, H330, H335, H341, H372, H373, H400, H410
Groups it belongs to
- Category
- Everyday chemistry
- Family
- Inorganic compounds
- Hazard classes
- Oxidizing, Corrosive, Acutely toxic, Irritant, Health hazard, Environmental hazard, GHS Danger
- Size
- Under 100 g/mol
SMILES
[O-][O+]=OPubChem CID 24823 · Wikidata Q36933 · InChIKey CBENFWSGALASAD-UHFFFAOYSA-N · Data refreshed
Questions
- What is Ozone?
- Three oxygens instead of two: the sharp smell after a lightning strike or near a photocopier. High up it blocks ultraviolet; at ground level it is smog.
- How toxic is Ozone?
- Its GHS hazard label carries the signal word Danger and the hazard pictograms Oxidizer, Corrosive, Toxic, Irritant, Health hazard and Environmental. from source
- What kind of molecule is Ozone?
- Ozone has the formula O3 and a molecular weight of 47.998 g/mol. MoleculeFinder files it under inorganic compounds, in the everyday chemistry group. from sourcefrom sourcefrom sourcefrom source
- What else is Ozone called?
- Ozone is also called triatomic oxygen. from source
Sources and notes
- Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
- Hazard labelfrom sourceECHA via PubChemThe label combines these classifications.
- ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
- Data refreshedfrom sourceMoleculeFinder2026-11-09