METHYL IONONES
6-Methylionone,3-Methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-buten-2-one,3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one,1-(2,6,6-Trimethyl-1-cyclohexen-1-yl)pent-1-en-3-one,1-(2,6,6-Trimethyl-2-cyclohex…
METHYL IONONES is linked to 1 EU annex record on this page.
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.
Swipe or scroll horizontally to see every column.
| Market | Evidence status | Records | Source language |
|---|---|---|---|
| European Union | Evidence linked Restricted entry found Open this evidence | 1 | English and EU languages |
| Great Britain | Source mapped Official source mapped; ingredient rule not imported | 0 | English |
| Canada | Source mapped Official source mapped; ingredient rule not imported | 0 | English and French |
| New Zealand | Source mapped Official source mapped; ingredient rule not imported | 0 | 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 | Source mapped Official source mapped; ingredient rule not imported | 0 | English and Hindi |
| Saudi Arabia | Source mapped Official source mapped; ingredient rule not imported | 0 | Arabic and English |
Chemical identity and properties
Beta methyl ionone
1-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-1-penten-3-one is a monoterpene. — ChEBI
- IUPAC name
- (E)-1-(2,6,6-trimethylcyclohexen-1-yl)pent-1-en-3-one
- Molecular formula
- C14H22O
- Molecular weight
- 206.32 g/mol
- Exact mass
- 206.167065321 Da
- XLogP3
- 3.4
- Topological polar surface area
- 17.1 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:88921
- EPA DTXSID:DTXSID401036355
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: 102.00 °C. @ 2.60 mm Hg Source: Human Metabolome Database (HMDB)
- Boiling Point: 238-242 °C Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Density: 0.930-0.935 Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Physical Description: Liquid Source: EPA Chemical Data Reporting (CDR)
- Physical Description: colourless to yellow liquid Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Refractive Index: 1.503-1.508 Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: (in ethanol) Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Signal: Warning Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]; H317 (100%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H411 (100%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P261, P264, P272, P273, P280, P302+P352, P321, P332+P317, P333+P317, P362+P364, P391, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 2 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Signal: Warning Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H315: Causes skin irritation [Warning Skin corrosion/irritation]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Precautionary Statement Codes: P261, P264, P272, P280, P302+P352, P321, P332+P317, P333+P317, P362+P364, and P501 (click each P-code to see the statement) Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Consumer Uses: Fragrance Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Fragrance Source: EPA Chemical Data Reporting (CDR)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Methylionone
1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-1-penten-3-one is a sesquiterpenoid. — ChEBI
- IUPAC name
- (E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-one
- Molecular formula
- C14H22O
- Molecular weight
- 206.32 g/mol
- Exact mass
- 206.167065321 Da
- XLogP3
- 3.4
- Topological polar surface area
- 17.1 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:172145
- ChEMBL:CHEMBL1371285
- EPA DTXSID:DTXSID501197970
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
5-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-4-penten-3-one
1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-1-penten-3-one is a clear, colorless to yellow liquid with a woody, violet odor. (NTP, 1992) — CAMEO Chemicals
- IUPAC name
- 1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-one
- Molecular formula
- C14H22O
- Molecular weight
- 206.32 g/mol
- Exact mass
- 206.167065321 Da
- XLogP3
- 3.4
- Topological polar surface area
- 17.1 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
2 more reported names
External database identifiers
- ChEMBL:CHEMBL4569846
- EPA DTXSID:DTXSID6026240
- PubMed:20931625
- PubMed:18949117
- PubMed:15850361
- PubMed:12652904
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
3-Methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-buten-2-one
- IUPAC name
- 3-methyl-4-(2,6,6-trimethylcyclohexen-1-yl)but-3-en-2-one
- Molecular formula
- C14H22O
- Molecular weight
- 206.32 g/mol
- Exact mass
- 206.167065321 Da
- XLogP3
- 3.3
- Topological polar surface area
- 17.1 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
External database identifiers
- EPA DTXSID:DTXSID0052544
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Inventory details for METHYL IONONES
INCI name
METHYL IONONES
Description
6-Methylionone,3-Methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-buten-2-one,3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one,1-(2,6,6-Trimethyl-1-cyclohexen-1-yl)pent-1-en-3-one,1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)pent-1-en-3-one
Record provenance
- Inventory reference
- 93089
- Imported identity
- METHYL IONONES
- Source update
- 20/10/2015
Annex records for METHYL IONONES
Key data
- FRAGRANCE
- Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.
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 METHYL IONONES appears in the CosIng inventory
The CosIng inventory lists METHYL IONONES 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.
METHYL IONONES is also tagged with 1 cosmetic function 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 METHYL IONONES
This page combines the CosIng inventory entry for METHYL IONONES 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 METHYL IONONES 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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