3,5,6-Trimethyl-3-Cyclohexenyl-4-Penten-3-One

INCI: 3,5,6-TRIMETHYL-3-CYCLOHEXENYL-4-PENTEN-3-ONE

CAS Number
Not confirmed from available search results (verify via CosIng database directly)
Function
Fragrance (Perfuming)
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not specifically restricted by FDA

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

The pentenone side chain may contain an α,β-unsaturated carbonyl — a known structural alert for skin sensitization (Michael acceptor); IFRA/RIFM assessment should be verified before formulation use

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Concern Level: Moderate

Regulatory Flags

potential-allergen fragrance-component

Frequently Asked Questions

Is 3,5,6-Trimethyl-3-Cyclohexenyl-4-Penten-3-One safe in cosmetics?

The pentenone side chain may contain an α,β-unsaturated carbonyl — a known structural alert for skin sensitization (Michael acceptor); IFRA/RIFM assessment should be verified before formulation use The EU classifies 3,5,6-Trimethyl-3-Cyclohexenyl-4-Penten-3-One as "permitted". Safety rating: MODERATE.

Is 3,5,6-Trimethyl-3-Cyclohexenyl-4-Penten-3-One allowed in the EU?

3,5,6-Trimethyl-3-Cyclohexenyl-4-Penten-3-One EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does 3,5,6-Trimethyl-3-Cyclohexenyl-4-Penten-3-One do in cosmetics?

3,5,6-Trimethyl-3-Cyclohexenyl-4-Penten-3-One functions as: Fragrance (Perfuming). It is classified as a cosmetic ingredient in our database. CAS number: Not confirmed from available search results (verify via CosIng database directly).

What is the Margin of Safety for 3,5,6-Trimethyl-3-Cyclohexenyl-4-Penten-3-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.

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