Beta Dihydroionone
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 |
| Impact Level | Medium |
| Tenacity1 | 80 h |
| Tenacity2 | 9 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Both tenacity figures are blotter life. The two labs use different evaluation protocols, so the numbers are not directly comparable — read them as two independent readings, not as a contradiction.
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
Dihydro-beta-ionone, Beta-dihydroionone, 2-Butanone, 4-(2,6,6-trimethyl-1-cyclohexenyl), 4-(2,6,6-Trimethyl-1-cyclohexenyl)butan-2-one, Dihydro-beta-ionone 4-(2,6,6-Trimethyl cyclohexen l yl) butan-2-one, Dihydro beta ionone, 2-butanone, 4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-, di hydro beta ionone, dihydro beta-ionone, 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 contained in this material. The interactive index derives the effective maximum concentration per category from them.
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.