Definition
US FDA substance register · UNII 4Q6W8568TG · registered name FENCHONE, (±)- · single chemical substance
Cosmetic roles
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 1195-79-5
- EC No.EU chemical inventory number
- 214-804-6
- DTXSIDUS EPA chemical ID
- DTXSID9025324
- DTXCIDUS EPA compound ID
- DTXCID305324
- IUPAC
- 1,3,3-Trimethylbicyclo[2.2.1]heptan-2-one
- Molecular formula
- C10H16O
- Molecular weight
- 152.237 g/mol
Measured properties
- Appearance
- liquid
- Colour
- colourless
- Melting/freezing point
- 5 ℃
- Initial boiling point and range
- 193~193.5 ℃
- Flash point
- 52.8 ℃
- Vapour pressure
- 0.463 ㎜Hg (25°C)
- Water solubility
- 744 ㎎/ℓ (25℃)
- Vapour density
- 5.253710735243355
- Relative density
- 0.9484 (20 °C)
- n-Octanol/water partition coefficient (Kow)
- 3.04
- Molecular weight
- 152.2
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 4 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.
- Fragrance4
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
2 skin studies and 1 eye studies are on record.
The studies disagree (the most common conclusion covers 25%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 3 studies
- Not likely to be sensitizing
skin sensitisation · Screening · according to other guideline: as mentioned below - Moderate or Mild Irritation
skin irritation: in vivo · Screening · other guideline: as mentioned below according to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: as mentioned below according to
Source: US EPA CompTox dashboard
Related literature
- Lavandula stoechas: Mediterranean aromatic plant: Data capitalization · 2025
- Fenchone and camphor: Main natural compounds from Lavandula stoechas L., expediting multiple in vitro biological activities · 2023
- Larvicidal and pupicidal activities of Foeniculum vulgare essential oil, trans‐anethole and fenchone against house fly Musca domestica and their inhibitory effect on acetylcholinestrase · 2021
- Essential oils of fennel seeds progeny from wild populations collected in Portugal · 2014
- Investigation of Effects of Terpene Skin Penetration Enhancers on Stability and Biological Activity of Lysozyme · 2012
Linked databases 12
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- EU CosIng ingredient list 2
- KOSHA safety data sheets (Korea)
- NIST Chemistry WebBook
- Tlooto literature search 2 3 4 5
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English · Japanese · Chinese