5-Methylfuranone

INCI: 5-METHYLFURANONE

CAS Number
591-12-8 (5-methyl-2(3H)-furanone)
Function
Fragrance (perfuming)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not restricted by FDA; FEMA GRAS as a flavor; IFRA-regulated for fragrance use

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
high
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Structurally related furanones include known sensitizers โ€” confirm specific isomer identity when sourcing.

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Concern Level: Low

Regulatory Flags

potential-allergen fragrance-component

Frequently Asked Questions

Is 5-Methylfuranone safe in cosmetics?

Structurally related furanones include known sensitizers โ€” confirm specific isomer identity when sourcing. The EU classifies 5-Methylfuranone as "permitted". Safety rating: GOOD.

Is 5-Methylfuranone allowed in the EU?

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

What does 5-Methylfuranone do in cosmetics?

5-Methylfuranone functions as: Fragrance (perfuming). It is classified as a cosmetic ingredient in our database. CAS number: 591-12-8 (5-methyl-2(3H)-furanone).

What is the Margin of Safety for 5-Methylfuranone?

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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