Is Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone) safe in cosmetics?
Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone) has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone)
INCI: LISTED AS FRAGRANCE COMPONENT; COMMONLY CALLED MASSOIA LACTONE (Δ-DECENOLACTONE, 6-PENTYL-5,6-DIHYDROPYRAN-2-ONE)
Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone) (CAS 54814-64-1 (racemic); 51154-96-2 (R-isomer)) is a cosmetic cosmetic ingredient functioning as Fragrance ingredient; FEMA GRAS 3744 (flavor use). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 54814-64-1 (racemic); 51154-96-2 (R-isomer) →
Auto-generated CPSR Part A draft with source citations
Function
Fragrance ingredient; FEMA GRAS 3744 (flavor use)
Safety Rating
MODERATE
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
FEMA GRAS 3744; permitted in flavors and fragrances
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone).
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone).
Regulatory Flags
potential-allergen
fragrance-component
natural-origin
Frequently Asked Questions
Is Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone) allowed in the EU?
Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone) EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone) do in cosmetics?
Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone) functions as: Fragrance ingredient; FEMA GRAS 3744 (flavor use). It is classified as a cosmetic ingredient in our database. CAS number: 54814-64-1 (racemic); 51154-96-2 (R-isomer).
Compliance Tools
Check Tetrahydro-6-pent-2-enyl-pyran-2-one (Massoia Lactone) compliance across multiple jurisdictions:
Ingredient Decoder
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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