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-Octynoic acid, 2-propen-1-yl ester
CAS 73157-43-4 · 70/100 · High conf.
Concern score
70/100High concern based on regulatory listings.
High confidence
2-Octynoic acid, 2-propen-1-yl ester in plain language
On cosmetic ingredient lists it appears as “Allyl heptine carbonate”.
Also known as Allyl heptine carbonate · Allyl heptine carbonate (allyl oct-2-ynoate) · Prop-2-en-1-yl oct-2-ynoate · (2-Propenyl) 2-Octynoate · 2-Octynoic acid, 2-propenyl ester · allyl oct-2-ynoate
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
Allyl heptine carbonate (allyl oct-2-ynoate) 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: 0.002% Other conditions: This material shall not be used in combination with any other 2- alkynoic acid ester (e.g. methyl heptine carbonate)
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-Octynoic acid, 2-propen-1-yl ester. 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-Octynoic acid, 2-propen-1-yl ester 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-Octynoic acid, 2-propen-1-yl ester in a product composition. These are source records, not Greenveil catalog products.
Named organisations
2
Typical roles
PerfumingFragrance