Fragrance avoidance
Not a strong fit for fragrance avoidance because it carries Fragrance.
The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.
- beauty
- industrial
2-Buten-1-one, 1-(2,4,4-trimethyl-2-cyclohexen-1-yl)-
CAS 33673-71-1 · 70/100 · High conf.
Concern score
70/100High concern based on regulatory listings.
High confidence
2-Buten-1-one, 1-(2,4,4-trimethyl-2-cyclohexen-1-yl)- in plain language
On cosmetic ingredient lists it appears as “Rose KETONE-5”.
Also known as Rose KETONE-5 · 1-(2,4,4-Trimethylcyclohex-2-en-1-yl)but-2-en-1-one · 1-(2,4,4-Trimethyl-2-cyclohexen-1-yl)-2-buten-1-one · 1-(2,4,4-Trimethyl-2-cyclohexenyl)-2-buten-1-one · Isodamascone · Ketone, propenyl 2,4,4-trimethyl-2-cyclohexen-1-yl
Used in cosmetics as a fragrance ingredient.
- Perfuming
- Fragrance
- High concern: no hazard classifications on record. It is restricted in EU cosmetics.
Why it's flagged
Rose ketone-5 (see note 16) 1-(2,4,4-Trimethyl-2-cycloehexen-1-yl)-2-buten-1-one is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.
RestrictedEU EC — restricted
The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.
Regulation
Restrictions first, then routine listings from published regulatory sources.
- EU Annex III — restricted
- EU restricted in cosmetics
- Found in consumer products
- Industrial
- View source →restricted
EUEC
Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Maximum concentration: 0.02%
USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Fragrance.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Fragrance.Source →
Expert safety opinions
No expert opinion on file for 2-Buten-1-one, 1-(2,4,4-trimethyl-2-cyclohexen-1-yl)-. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
Evidence & sources
No graded research studies for 2-Buten-1-one, 1-(2,4,4-trimethyl-2-cyclohexen-1-yl)- yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Avoid
Where it has been recorded
How often EPA CPDat has listed 2-Buten-1-one, 1-(2,4,4-trimethyl-2-cyclohexen-1-yl)- in a product composition. These are source records, not Greenveil catalog products.
Named organisations
2
Typical roles
PerfumingFragrance