Is Isomethyl Beta-Ionone safe in cosmetics?
Isomethyl Beta-Ionone has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted.
Moderate
Cosmetic Ingredient
Isomethyl Beta-Ionone
Also known as: 3-Buten-2-one, 3-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-, EINECS 201-231-1, FEMA No. 2713, delta-Iraldeine, Methyl-delta-ionone (+4 more)
INCI: ISOMETHYL BETA-IONONE
Isomethyl Beta-Ionone (CAS 79-89-0) 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 and food safety data.
View industrial chemical safety profile for CAS 79-89-0 →
Auto-generated CPSR Part A draft with source citations
Function
Fragrance (perfuming agent)
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
3-methyl-4-(2,6,6-trimethylcyclohexen-1-yl)but-3-en-2-one
InChIKey
NSSHGPBKKVJJMM-UHFFFAOYSA-N
Regulatory Status
EU EU Status
restricted
US US Status
permitted
US Notes
Permitted — no CFR restriction for cosmetic use. FDA revoked GRAS status for food flavoring (2018 ban on 7 synthetic flavoring substances including beta-isomethylionone).
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Isomethyl Beta-Ionone.
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
2186
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
beta-ISOMETHYLIONONE | 2014 | No safety concern at current estimated dietary exposure when used as a flavouring agent | TRS 990-JECFA 79/69 | FAS 70-JECFA 53/217
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Deodorizer
Flavouring and nutrient
Fragrance
Regulatory List Membership (2)
IFRA Fragrance Transparency List
FDA Substances Added to Food (EAFUS)
Expert Verdict
Expert safety assessment and concern-level summary for Isomethyl Beta-Ionone.
Regulatory Flags
fragrance-component
ifra_fragrance
fda_food_additive
Known Synonyms
3-Buten-2-one, 3-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-
EINECS 201-231-1
FEMA No. 2713
delta-Iraldeine
Methyl-delta-ionone
NSC 66433
4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-3-methyl-3-buten-2-one
4-(2,6,6-Trimethyl-1-cyclohexenyl)-3-methyl-3-buten-2-one
UNII-MA3RM4FRWI
Chemical Function
Fragrance
Deodorizer
Flavouring and nutrient
Regulatory Lists
Europe
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
IFRA Transparency
Australian Status
AICIS status: listed
Cross-Vertical Safety Context
Same-CAS public records found in food safety data.
SOURCE
EFSA / FDA GRAS
food_additives
Food Safety Data
Same-CAS food additive or FDA GRAS records from the core public database.
Food Name
BETA-ISOMETHYLIONONE
ADI
No safety concern at current estimated dietary exposure when used as a flavouring agent mg/kg bw
Food Category
flavoring
Frequently Asked Questions
Is Isomethyl Beta-Ionone allowed in the EU?
Isomethyl Beta-Ionone EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isomethyl Beta-Ionone do in cosmetics?
Isomethyl Beta-Ionone functions as: Fragrance (perfuming agent). It is classified as a cosmetic ingredient in our database. CAS number: 79-89-0.
Is Isomethyl Beta-Ionone used outside cosmetics?
Isomethyl Beta-Ionone also appears in industrial chemical safety and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Isomethyl Beta-Ionone compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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Chemical family
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Chemical family
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ACRYLIC ACID
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Chemical family
Nail Conditioning
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