Ozone is an elemental molecule with formula O3.
Definition
US FDA substance register · UNII 66H7ZZK23N · registered name OZONE · single chemical substance
Ozone is an elemental molecule with formula O3. An explosive, pale blue gas (b.p. 112C) that has a characteristic, pungent odour, it is continuously produced in the upper atmosphere by the action of solar ultraviolet radiation on atmospheric oxygen. It is an antimicrobial agent used in the production of bottled water, as well as in the treatment of meat, poultry and other foodstuffs. It has a role as a mutagen, a tracer, an antiseptic drug, a disinfectant, an electrophilic reagent, an oxidising agent and a member of greenhouse gas. It is a gas molecular entity, an elemental molecule, a member of reactive oxygen species and a triatomic oxygen.
Source: PubChem
Ozone is the inorganic compound that conforms to the formula:
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name オゾン: 本品は、次の化学式で表される無機化合物である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 10028-15-6
- EC No.EU chemical inventory number
- 233-069-2
- EC No.EU chemical inventory number
- 233-069-2 (I)
- DTXSIDUS EPA chemical ID
- DTXSID0021098
- DTXCIDUS EPA compound ID
- DTXCID001098
- IUPAC
- Trioxid-2-en-2-ium-1-ide
- Molecular formula
- O3
- Molecular weight
- 47.997 g/mol
Measured properties
- Colour
- colourless
- Melting/freezing point
- -193 ℃
- Initial boiling point and range
- -112 ℃
- Vapour pressure
- 55000 ㎩(-12℃)
- Water solubility
- 1.1 g/ℓ
- Relative density
- 1.995 (20℃)
- n-Octanol/water partition coefficient (Kow)
- -0.87 (at 20℃)
- Molecular weight
- 47.997
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: KOSHA safety data sheets (Korea)
What products actually use it for
What the 3 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Pharmaceutical (EPA)1
- No specific technical function1
- Biocide1
Source: US EPA CompTox dashboard
Related literature
- Atmospheric ozone monitoring in the Indian network in view of possibility of damage to the biosphere due to distortion of ozone layer · 2022
- Indoor ozone and ozone reaction products: An Emerging Health Threat. · 2025
- Nanocluster Aerosols from Ozone–Human Chemistry Are Dominated by Squalene–Ozone Reactions · 2024
- Ozone Therapy in Equines · 2024
- Ozone and Ozone By-Products in the Cabins of Commercial Aircraft · 2013
Linked databases 17
- ChEBI
- ChEMBL
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- NIST Chemistry WebBook
- PubChem
- Tlooto literature search 2 3 4 5
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- US National Toxicology Program reports
- Wikidata
- Wikipedia · Korean · English · Japanese · Chinese