Acetylcyclopentanone

INCI: ACETYLCYCLOPENTANONE

CAS Number
Likely 1670-46-8 (2-Acetylcyclopentanone)
Function
Masking, perfuming
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes No FDA restriction or CIR review identified

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

Very limited cosmetic safety data; full toxicological dossier required for EU compliance under Article 10 of Regulation 1223/2009.

⚠️
Concern Level: Moderate

Regulatory Flags

fragrance-component

Frequently Asked Questions

Is Acetylcyclopentanone safe in cosmetics?

Very limited cosmetic safety data; full toxicological dossier required for EU compliance under Article 10 of Regulation 1223/2009. The EU classifies Acetylcyclopentanone as "permitted". Safety rating: MODERATE.

Is Acetylcyclopentanone allowed in the EU?

Acetylcyclopentanone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Acetylcyclopentanone do in cosmetics?

Acetylcyclopentanone functions as: Masking, perfuming. It is classified as a cosmetic ingredient in our database. CAS number: Likely 1670-46-8 (2-Acetylcyclopentanone).

What is the Margin of Safety for Acetylcyclopentanone?

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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