# 1-(4-Methoxyphenyl)-1-pentene-3-one

URL: https://app.greenveil.ai/ingredients/ingredient_cas_104_27_8
Categories: beauty, industrial
Functions: Flavouring and nutrient
Identifier: 104-27-8

> 1-(4-Methoxyphenyl)-1-pentene-3-one is used as flavouring and nutrient. Greenveil chemical-concern score: 100/100 — Critical concern based on regulatory listings.. Assessed from 3 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern based on regulatory listings.
- Confidence: 4
- Rationale: 1-(4-Methoxyphenyl)-1-pentene-3-one (alpha-Methylanisylideneacetone), when used as a fragrance ingredient is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

## Regulatory status

- EU: banned — Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.
- 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 Flavouring and nutrient.

_Assessed by Greenveil._