Is Tetramethylnona-6,8-dien-3-one safe in cosmetics?
Tetramethylnona-6,8-dien-3-one has a safety rating of "GOOD" in our database. EU status: restricted. US status: restricted.
Good
Cosmetic Ingredient
Tetramethylnona-6,8-dien-3-one
Also known as: EINECS 279-816-6
INCI: 2,4,4,7-TETRAMETHYLNONA-6,8-DIEN-3-ONE (ALSO: LABIENONE)
Tetramethylnona-6,8-dien-3-one (CAS 81782-89-0) is a cosmetic cosmetic ingredient functioning as Fragrance / Perfuming agent. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 81782-89-0 →
Auto-generated CPSR Part A draft with source citations
Function
Fragrance / Perfuming agent
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
(6E)-2,4,4,7-tetramethylnona-6,8-dien-3-one
InChIKey
TWJFINAHYOYYOB-DHZHZOJOSA-N
Regulatory Status
EU EU Status
restricted
US US Status
restricted
US Notes
Not specifically restricted; permitted in cosmetics as a fragrance ingredient. RIFM safety assessment completed
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Tetramethylnona-6,8-dien-3-one.
Calculate MoS for your specific formulation with the MoS Calculator.
HRIPT Human Patch Test Studies
1 human repeat insult patch test aggregated from dermatological literature.
| Test Type | N | Sensitized | Dose µg/cm² | NESIL µg/cm² | Potency |
|---|---|---|---|---|---|
| HRIPT | - | 0 | 4000 | - | - |
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Fragrance
Regulatory List Membership (1)
IFRA Fragrance Transparency List
Expert Verdict
Expert safety assessment and concern-level summary for Tetramethylnona-6,8-dien-3-one.
Regulatory Flags
potential-allergen
fragrance-component
ifra_fragrance
Known Synonyms
EINECS 279-816-6
Chemical Function
Fragrance
Regulatory Lists
IFRA Transparency
Frequently Asked Questions
Is Tetramethylnona-6,8-dien-3-one allowed in the EU?
Tetramethylnona-6,8-dien-3-one EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Tetramethylnona-6,8-dien-3-one do in cosmetics?
Tetramethylnona-6,8-dien-3-one functions as: Fragrance / Perfuming agent. It is classified as a cosmetic ingredient in our database. CAS number: 81782-89-0.
Is Tetramethylnona-6,8-dien-3-one used outside cosmetics?
Tetramethylnona-6,8-dien-3-one also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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