Alpha Neobutenone
Aroma Chemical Base Note CAS 56973-85-4
Very powerful green galbanum with a metallic edge and juicy pineapple and blackcurrant fruitiness. Diffusive and modern, it brings a crisp green lift to fresh and fruity compositions.
Odor profile
| Note | Base Note |
| Descriptor 1 | Green |
| Descriptor 2 | Fruity |
| Descriptor 3 | Galbanum |
| Odor Impact1 | 250 |
| Tenacity1 | 348 h |
| Tenacity2 | 348 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 | 56973-85-4 |
| INCI Name | Dimethylcyclohexenyl 3-butenyl ketone |
| Category | Aroma Chemical |
| Formula | C13H20O |
| Mol. Weight | 192.30 |
| IUPAC Name | 1-(5,5-dimethylcyclohexen-1-yl)pent-4-en-1-one |
| InChIKey | OEVIJAZJVZDBQL-UHFFFAOYSA-N |
Synonyms
1-(5,5-Dimethyl-1-cyclohexen-1-yl)pent-4-en-1-one, neo butenone alpha, dimethyl cyclohexenyl 3-butenyl ketone, 1-(5,5- dimethyl-1-cyclohexen-1-yl) pent-4-en-1-one, 1-(5,5- dimethyl-1-cyclohexenyl)pent-4-en-1-one, dynascone, galbanum ketone, galbascone, Alpha-neobutenone, neo butenone alpha (Firmenich), neo butenone alpha 10% DIPG, 1-(5,5-dimethyl-1-cyclohexen-1-yl) pent-4-en-1-one, 1-(5,5-dimethyl-1-cyclohexen-1-yl)-4-penten-1-one, 1-(5,5-dimethyl-1-cyclohexen-1-yl)-4-penten-1-one 10% in D.P.G., 1-(5,5-dimethyl-1-cyclohexen-1-yl)-4-penten-1-one pure, 1-(5,5-dimethyl-1-cyclohexenyl)pent-4-en-1-one, 1-(5,5-dimethylcyclohex-1-en-1-yl)pent-4-en-1-one, dynamor (IFF), dynamor 10% in DPG (IFF), neo dynamor alpha (IFF), dynascone (Firmenich), dynascone 10% DIPG, galbanone, galbascone (IFF), galbascone high alpha (IFF), 4-penten-1-one, 1-(5,5-dimethyl-1-cyclohexen-1-yl)-, verdascone (Indukern), verdascone 10 (Indukern)
Physical and chemical data
| Boiling Point | 268.00 °C |
| Flash Point | 112.78 °C |
| Vapor Pressure | 0.008000 mmHg @ 25.00 C. (est) |
| LogP | 3.6 |
| Solubility | alcohol; water, 7.642 mg/L @ 25 C (est); APC: traces - 0.1% |
| Appearance | Liquid; CBI |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | 0.19 % |
| Category 2 | Deodorants, antiperspirants | 0.057 % |
| Category 3 | Eye products | 0.18 % |
| Category 4 | Fine fragrance | 1.1 % |
| Category 5A | Body lotion | 0.27 % |
| Category 5B | Face cream | 0.27 % |
| Category 5C | Hand cream | 0.27 % |
| Category 5D | Baby creams, oils | 0.091 % |
| Category 6 | Oral care, mouthwash | 0.54 % |
| Category 7A | Rinse-off hair products | 0.54 % |
| Category 7B | Leave-on hair products | 0.54 % |
| Category 8 | Intimate and baby wipes | 0.091 % |
| Category 9 | Soap, shampoo, rinse-off | 1.4 % |
| Category 10A | Household care, hand contact | 1.4 % |
| Category 10B | Aerosol air fresheners | 3.4 % |
| Category 11A | Intended skin contact | 0.091 % |
| Category 11B | Minimal skin contact | 0.091 % |
| Category 12 | No skin contact, candles | Not restricted |
| IFRA Amendment | 49 |
| Restriction Type | Restriction |
| Critical Effect | Dermal Sensitization And Systemic Toxicity |
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.