Methylcyclopentenolone (Maple Lactone / MCP)

INCI: METHYLCYCLOPENTENOLONE

CAS Number
765-70-8
Function
Fragrance
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - also FEMA GRAS (Generally Recognized as Safe) for flavoring applications

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

Generally regarded as safe at typical use levels; mild skin irritation possible at high concentrations. Sweet, caramel/maple-like aroma; also known as "corylone." Functions as both a fragrance enhancer and has antioxidant properties. Molecular formula Cโ‚†Hโ‚ˆOโ‚‚

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Concern Level: Moderate

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive

Frequently Asked Questions

Is Methylcyclopentenolone (Maple Lactone / MCP) safe in cosmetics?

Generally regarded as safe at typical use levels; mild skin irritation possible at high concentrations. Sweet, caramel/maple-like aroma; also known as "corylone." Functions as both a fragrance enhancer and has antioxidant properties. Molecular formula Cโ‚†Hโ‚ˆOโ‚‚ The EU classifies Methylcyclopentenolone (Maple Lactone / MCP) as "permitted". Safety rating: MODERATE.

Is Methylcyclopentenolone (Maple Lactone / MCP) allowed in the EU?

Methylcyclopentenolone (Maple Lactone / MCP) EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methylcyclopentenolone (Maple Lactone / MCP) do in cosmetics?

Methylcyclopentenolone (Maple Lactone / MCP) functions as: Fragrance. It is classified as a cosmetic ingredient in our database. CAS number: 765-70-8.

What is the Margin of Safety for Methylcyclopentenolone (Maple Lactone / MCP)?

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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