# (E)-1-(2,4,4-Trimethyl-2-cyclohexen-1-yl)-2-buten-1-one

URL: https://app.greenveil.ai/ingredients/ingredient_cas_39872_57_6
Categories: beauty, industrial
Functions: Fragrance
Identifier: 39872-57-6

> (E)-1-(2,4,4-Trimethyl-2-cyclohexen-1-yl)-2-buten-1-one is used as fragrance. Greenveil chemical-concern score: 70/100 — High concern based on regulatory listings.. Assessed from 3 sources.

## Safety assessment

- Chemical concern score: 70/100 — High concern based on regulatory listings.
- Confidence: 4
- Rationale: trans-Rose ketone-5 (see note 16) (E)-1-(2,4,4-Trimethyl-2-cyclohexen-1-yl)-2-buten-1-one (Isodamascone) is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.

## Regulatory status

- EU: restricted — 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%
- US: commercial use observed — 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.

_Assessed by Greenveil._