Dihydro-beta-Ionone
Aroma Chemical Heart Note CAS 17283-81-7
Dry, woody with a violet and orris character and a soft earthy, ambery facet recalling mahogany. It adds a dry woody floralcy to leather, rose and woody accords.
Odor profile
| Note | Heart Note |
| Descriptor 1 | Floral |
| Descriptor 2 | Orris |
| Descriptor 3 | Cedarwood |
| Odor Impact1 | 220 |
| Tenacity2 | 9 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Identification
| CAS Number | 17283-81-7 |
| INCI Name | Trimethyl-1-cyclohexenylbutan-2-one |
| Category | Aroma Chemical |
| Formula | C13H22O |
| Mol. Weight | 194.31 |
| IUPAC Name | 4-(2,6,6-trimethylcyclohexen-1-yl)butan-2-one |
| InChIKey | QJJDNZGPQDGNDX-UHFFFAOYSA-N |
Synonyms
Beta-dihydroionone; 4-(2,6,6-Trimethyl-1-cyclohexenyl)butan-2-one; dihydro ionone beta; dihydro-b-ionone; 7,8-dihydro-beta-ionone; dihydroionon beta; 4-(2,6,6-trimethyl-1-cyclohexen-1-yl) butan-2-one; 4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-butanone; 4-(2,6,6-trimethyl-1-cyclohexen-1-yl)butan-2-one; 4-2,6,6-trimethyl-1-cyclohexenyl butan-2-one; 4-(2,6,6-trimethyl-1-cyclohexenyl)-2-butanone; 4-(2,6,6-trimethylcyclohex-1-en-1-yl)butan-2-one; woody ionone
Physical and chemical data
| Boiling Point | 261.5 °C |
| Flash Point | 110 °C |
| Density | 0.92 |
| Refractive Index | 1.479 |
| Vapor Pressure | 0.010000 mmHg @ 25.00 C. (est) |
| LogP | 2.7 |
| Solubility | 48 mg/L @ 20 °C (exp) |
| Appearance | Liquid |
Regulatory status
Restricted components
| Component | Share |
|---|---|
| Alpha Isomethyl Ionone | 0.046 % |
IFRA regulated substances declared for this material. For naturals — which are mixtures of many molecules — the interactive index derives the effective maximum concentration per category from them. On single molecules these shares are purity traces from the supplier specification; they are far too small to limit use and are therefore not counted.
EU allergen declaration
| Substance | Share |
|---|---|
| Alpha-Isomethyl ionone | 0.046 % |
Substances that must be named in the ingredient list under Annex III of Regulation (EC) 1223/2009, as amended by Regulation (EU) 2023/1545. Where a range was given, the upper bound is shown.
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.