Is Trimethyl-1,3-Cyclohexadienylbutan-2-one safe in cosmetics?
Trimethyl-1,3-Cyclohexadienylbutan-2-one has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Trimethyl-1,3-Cyclohexadienylbutan-2-one
Also known as: Dehydrodihydroionone, EINECS 243-847-3, FEMA No. 3447, 4-(2,6,6-Trimethyl-1,3-cyclohexadien-1-yl)-2-butanone, UNII-XZS4VD987O (+6 more)
INCI: TRIMETHYL-1,3-CYCLOHEXADIENYLBUTAN-2-ONE
Trimethyl-1,3-Cyclohexadienylbutan-2-one (CAS 20483-36-7) is a cosmetic cosmetic ingredient functioning as Fragrance / Perfuming agent. EU Regulation 1223/2009 status: permitted. 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 20483-36-7 →
Auto-generated CPSR Part A draft with source citations
Function
Fragrance / Perfuming agent
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
4-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)butan-2-one
InChIKey
SQFRYZPEWOZAKJ-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted as fragrance ingredient; no specific restrictions
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Trimethyl-1,3-Cyclohexadienylbutan-2-one.
Calculate MoS for your specific formulation with the MoS Calculator.
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Regulatory (2)
JECFA Number
396
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
DEHYDRODIHYDROIONONE | 1998 | No safety concern at current levels of intake when used as a flavouring agent | TRS 891-JECFA 51/96 | FAS 42-JECFA 51/335
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Flavouring and nutrient
Fragrance
Regulatory List Membership (1)
FDA Substances Added to Food (EAFUS)
Expert Verdict
Expert safety assessment and concern-level summary for Trimethyl-1,3-Cyclohexadienylbutan-2-one.
Regulatory Flags
fragrance-component
fda_food_additive
Known Synonyms
Dehydrodihydroionone
EINECS 243-847-3
FEMA No. 3447
4-(2,6,6-Trimethyl-1,3-cyclohexadien-1-yl)-2-butanone
UNII-XZS4VD987O
4-(2,6,6-Trimethyl cyclohexa-1,3-dienyl) butane-2-one
4-(2,6,6-Trimethyl-1,3-cyclohexadien-1-yl)butan-2-one
4-(2,6,6-Trimethylcyclohexa-1,3-dienyl)butan-2-one
7,8-Dihydro-3,4-dehydro-b-ionone
Dihydrodehydro-beta-ionone
FEMA 3447
Chemical Function
Fragrance
Flavouring and nutrient
Regulatory Lists
Europe
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Trimethyl-1,3-Cyclohexadienylbutan-2-one allowed in the EU?
Trimethyl-1,3-Cyclohexadienylbutan-2-one EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Trimethyl-1,3-Cyclohexadienylbutan-2-one do in cosmetics?
Trimethyl-1,3-Cyclohexadienylbutan-2-one functions as: Fragrance / Perfuming agent. It is classified as a cosmetic ingredient in our database. CAS number: 20483-36-7.
Is Trimethyl-1,3-Cyclohexadienylbutan-2-one used outside cosmetics?
Trimethyl-1,3-Cyclohexadienylbutan-2-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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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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