ALPHA-ISOMETHYL IONONE
3-Methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; Methyl-gamma-ionone; gamma-Methylionone
ALPHA-ISOMETHYL IONONE is linked to 1 EU annex record on this page. Inventory note: III/90.
Regulatory evidence by market
This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.
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| Market | Evidence status | Records | Source language |
|---|---|---|---|
| European Union | Evidence linked Restricted entry found Open this evidence | 1 | English and EU languages |
| Great Britain | Evidence linked Restricted Open this evidence | 1 | English |
| Canada | Source mapped Official source mapped; ingredient rule not imported | 0 | English and French |
| New Zealand | Evidence linked Restricted Open this evidence | 1 | English |
| ASEAN | Source mapped Official source mapped; ingredient rule not imported | 0 | English and national languages |
| China | Source mapped Official source mapped; ingredient rule not imported | 0 | Chinese with selected English material |
| Japan | Source mapped Official source mapped; ingredient rule not imported | 0 | Japanese; official English translation available |
| South Korea | Source mapped Official source mapped; ingredient rule not imported | 0 | Korean with some English names |
| United States | Source mapped Official source mapped; ingredient rule not imported | 0 | English |
| Australia | Source mapped Official source mapped; ingredient rule not imported | 0 | English |
| Brazil | Source mapped Official source mapped; ingredient rule not imported | 0 | Portuguese with INCI crosswalks |
| India | Evidence linked Restricted Open this evidence | 1 | English and Hindi |
| Saudi Arabia | Evidence linked Restricted Open this evidence | 1 | Arabic and English |
Exact external identity check
matchedOne PubChem compound was retained because the exact CosIng name appears among its reported synonyms.
- PubChem title
- 3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one
- IUPAC name
- (E)-3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one
- Molecular formula
- C14H22O
- Molecular weight
- 206.32 g/mol
- InChIKey
- JRJBVWJSTHECJK-PKNBQFBNSA-N
3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one is a sesquiterpenoid.
Open exact PubChem recordExact CosIng INCI name equals a PubChem synonym · Checked 2026-08-31
Inventory details for ALPHA-ISOMETHYL IONONE
INCI name
ALPHA-ISOMETHYL IONONE
Description
3-Methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; Methyl-gamma-ionone; gamma-Methylionone
Record provenance
- Inventory reference
- 39665
- Imported identity
- ALPHA-ISOMETHYL IONONE
- Source update
- 12/07/2019
Annex records for ALPHA-ISOMETHYL IONONE
Key data
- PERFUMING
- Used for perfume and aromatic raw materials.
- SKIN CONDITIONING
- Maintaining the skin in good condition.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
This substance is on the EU list of fragrance allergens that must be named individually in the ingredient list, rather than being covered by the word "parfum", once it exceeds 0.001% in a leave-on product or 0.01% in a rinse-off product.
Declaration is a labelling duty under Article 19, not a restriction on use. See the allergen record
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
How ALPHA-ISOMETHYL IONONE appears in the CosIng inventory
The CosIng inventory lists ALPHA-ISOMETHYL IONONE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.
ALPHA-ISOMETHYL IONONE is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.
Frequently asked questions
Source note for ALPHA-ISOMETHYL IONONE
This page combines the CosIng inventory entry for ALPHA-ISOMETHYL IONONE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.
Use this inventory page to research ALPHA-ISOMETHYL IONONE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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