Dihydro-4-methyl-5-methylbutyl-furanone

INCI: DIHYDRO-4-METHYL-5-(3-METHYLBUTYL)-2(3H)-FURANONE

CAS Number
Verify — likely in the lactone family near whiskey lactone (CAS 39212-23-2) ; exact CAS for the isoamyl variant requires confirmation
Function
Fragrance ingredient with lactonic, creamy, coconut, and woody notes
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status restricted
🇺🇸 US Status permitted
US Notes Likely FEMA GRAS; related lactones hold FEMA 3803. Confirm specific FEMA number.

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

CAS confirmation required. JECFA evaluated whiskey lactone (CAS 39212-23-2) as safe flavouring agent. Specific IFRA Certificate needed. Read-across from whiskey lactone family is plausible but CPSR assessor may require ingredient-specific data.

⚠️
Concern Level: Low

Regulatory Flags

fragrance-component

Frequently Asked Questions

Is Dihydro-4-methyl-5-methylbutyl-furanone safe in cosmetics?

CAS confirmation required. JECFA evaluated whiskey lactone (CAS 39212-23-2) as safe flavouring agent. Specific IFRA Certificate needed. Read-across from whiskey lactone family is plausible but CPSR assessor may require ingredient-specific data. The EU classifies Dihydro-4-methyl-5-methylbutyl-furanone as "restricted". Safety rating: GOOD.

Is Dihydro-4-methyl-5-methylbutyl-furanone allowed in the EU?

Dihydro-4-methyl-5-methylbutyl-furanone EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.

What does Dihydro-4-methyl-5-methylbutyl-furanone do in cosmetics?

Dihydro-4-methyl-5-methylbutyl-furanone functions as: Fragrance ingredient with lactonic, creamy, coconut, and woody notes. It is classified as a cosmetic ingredient in our database. CAS number: Verify — likely in the lactone family near whiskey lactone (CAS 39212-23-2) ; exact CAS for the isoamyl variant requires confirmation.

What is the Margin of Safety for Dihydro-4-methyl-5-methylbutyl-furanone?

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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