Pentamethyl-Cyclopent-1-Enyl Methyl Ketone

CAS Number
Not confirmed (check supplier TDS)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted as fragrance ingredient

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Methyl ketone with cyclopentenyl unsaturation; theoretical potential for Michael addition reactions with skin proteins. Use within IFRA-recommended levels; requires IFRA Chain of Custody.

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Concern Level: Low

Regulatory Flags

potential-allergen fragrance-component

Frequently Asked Questions

Is Pentamethyl-Cyclopent-1-Enyl Methyl Ketone safe in cosmetics?

Methyl ketone with cyclopentenyl unsaturation; theoretical potential for Michael addition reactions with skin proteins. Use within IFRA-recommended levels; requires IFRA Chain of Custody. The EU classifies Pentamethyl-Cyclopent-1-Enyl Methyl Ketone as "permitted". Safety rating: GOOD.

Is Pentamethyl-Cyclopent-1-Enyl Methyl Ketone allowed in the EU?

Pentamethyl-Cyclopent-1-Enyl Methyl Ketone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What is the Margin of Safety for Pentamethyl-Cyclopent-1-Enyl Methyl Ketone?

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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