Gamma Dodecalactone
Aroma Chemical Base Note CAS 2305-05-7
Rich, fatty peach and apricot with a creamy, milky lactonic character and a soft musky warmth. It smooths and deepens fruity and floral accords.
Odor profile
| Note | Base Note |
| Descriptor 1 | Fruity |
| Descriptor 2 | Oily |
| Descriptor 3 | Peach |
| Odor Impact1 | 200 |
| Impact Level | Medium |
| Tenacity1 | 145 h |
| Tenacity2 | 400 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 | 2305-05-7 |
| INCI Name | Gamma-dodecalactone |
| Category | Aroma Chemical |
| Formula | C12H22O2 |
| Mol. Weight | 198.30 |
| IUPAC Name | 5-octyloxolan-2-one |
| InChIKey | WGPCZPLRVAWXPW-UHFFFAOYSA-N |
Synonyms
gamma-Dodecalactone, Dodecanolide 1,4, Dodecanoic acid, 4-hydroxy-, lactone gamma n Octyl gamma n butyro lactone, Dodecanolide-1, 2(3h)-Furanone, Dihydro-5-Octyl, dihydro-5-octyl furan-2(3H)-one, dihydro-5-octyl-2(3H)-furanone, dihydro-5-octylfuran-2(3H)-one, gamma-dodecalactona natural, gamma-dodecalactone FCC, dodecalactone gamma, dodecalactone gamma naturel, gamma-dodecalactone natural, dodecano-1,4-lactone, 4-dodecanolide, dodecanolide-1,4, furan-2-one, dihydro-5-octyl-, 2(3H)-furanone, dihydro-5-octyl-, 4-hydroxy-4-octylbutanoic acid lactone, 4-hydroxydodecanoic acid gamma-lactone, 4-hydroxydodecanoic acid lactone, 4-octyl butan-4-olide, 5-octyl-3,4,5-trihydrofuran-2-one, 4-N-octyl-4-hydroxybutanoic acid lactone, 5-octyl-dihydro-furan-2-one, gamma-octyl-gamma-butyrolactone, 5-octyl-tetrahydro-furan-2-one, 4-octylbutan-4-olide, 5-octyldihydrofuran-2(3H)-one, 5-octyloxolan-2-one
Physical and chemical data
| Boiling Point | 130 °C @ 1.5 mmHg |
| Melting Point | 17.00 °C |
| Flash Point | >100 °C |
| Density | 0.933 |
| Refractive Index | 1.451 |
| Vapor Pressure | 0.002000 mmHg @ 25.00 C. (est) |
| LogP | 3.8 |
| Solubility | 1 ml in 1 ml 95% alcohol (in ethanol) |
| Appearance | colourless to pale yellow liquid with a fruity, peach-like, pear-like odour |
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.