3-Ethyl-2-Hydroxy-4-Methylcyclopent-2-En-1-One
INCI: 3-ETHYL-2-HYDROXY-4-METHYLCYCLOPENT-2-EN-1-ONE
Regulatory Status
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Safety Data
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Expert Verdict
α,β-Unsaturated ketone structural alert — theoretically reactive, but the 2-hydroxy group stabilizes the molecule. RIFM/JECFA evaluations have found it acceptable at intended use levels. Verify purity specifications.
Regulatory Flags
Frequently Asked Questions
Is 3-Ethyl-2-Hydroxy-4-Methylcyclopent-2-En-1-One safe in cosmetics?
α,β-Unsaturated ketone structural alert — theoretically reactive, but the 2-hydroxy group stabilizes the molecule. RIFM/JECFA evaluations have found it acceptable at intended use levels. Verify purity specifications. The EU classifies 3-Ethyl-2-Hydroxy-4-Methylcyclopent-2-En-1-One as "permitted". Safety rating: GOOD.
Is 3-Ethyl-2-Hydroxy-4-Methylcyclopent-2-En-1-One allowed in the EU?
3-Ethyl-2-Hydroxy-4-Methylcyclopent-2-En-1-One EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does 3-Ethyl-2-Hydroxy-4-Methylcyclopent-2-En-1-One do in cosmetics?
3-Ethyl-2-Hydroxy-4-Methylcyclopent-2-En-1-One functions as: Perfuming/Fragrance — sweet, caramellic, maple-like character. It is classified as a cosmetic ingredient in our database. CAS number: 21835-01-8 (Corylone / Maple Lactone) — *confirm via CosIng*.
What is the Margin of Safety for 3-Ethyl-2-Hydroxy-4-Methylcyclopent-2-En-1-One?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
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Related Ingredients
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