Definition
US FDA substance register · UNII 8K2S58736F · registered name 5-METHYL-2-HEPTEN-4-ONE · single chemical substance
Cosmetic roles
Gives the product a scentPERFUMING
More data — names, identifiers, properties, test records, literature
Names & identifiers
TRANS-5-METHYL-2-HEPTEN-4-ONEINCI
- CAS No.chemical registry number
- 102322-83-8
- DTXSIDUS EPA chemical ID
- DTXSID401017670
- DTXCIDUS EPA compound ID
- DTXCID40910598
- IUPAC
- (2E)-5-Methylhept-2-en-4-one
- Molecular formula
- C8H14O
- Molecular weight
- 126.199 g/mol
What products actually use it for
What the 1 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.
- Fragrance1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
3 skin studies and 1 eye studies are on record.
Classed as highly irritating3
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 4 studies
- Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) 1981 according to - High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) 1981 - High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · equivalent or similar to OECD Guideline 406 (Skin Sensitisation) 1981 - Studies Indicate No Significant Irritation
eye irritation: in vitro / ex vivo · Screening · OECD Guideline 437 (Bovine Corneal Opacity and Permeability Test Method for Identifying Ocular Corrosives and Severe Irritants) [before 26 July 2013] according to
Source: US EPA CompTox dashboard