Delta Decalactone
Aroma Chemical Base Note CAS 705-86-2
A creamy lactonic note with a coconut and peach character and a soft dairy facet. Sweet and natural, it adds a fruity warmth to compositions.
Odor profile
| Note | Base Note |
| Descriptor 1 | Gourmand |
| Descriptor 2 | Creamy |
| Descriptor 3 | Coconut |
| Odor Impact1 | 100 |
| Impact Level | Medium |
| Tenacity1 | 400 h |
| Tenacity2 | 336 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 | 705-86-2 |
| INCI Name | Delta-decalactone |
| Category | Aroma Chemical |
| Formula | C10H18O2 |
| Mol. Weight | 170.25 |
| IUPAC Name | 6-pentyloxan-2-one |
| InChIKey | GHBSPIPJMLAMEP-UHFFFAOYSA-N |
Synonyms
Delta-Decalactone, 5-amyl-5-hydroxypentanoic acid lactone, 5-N-amyl-5-hydroxypentanoic acid lactone, amyl-d-valerolactone, amyl-delta-valerolactone, delta-amyl-delta-valerolactone, d-amylvalerolactone, delta-deca lactone, 5-decalactone, d-decalactone, nat.delta-decalactone, delta-decalactone (natural), decalactone delta, decalactone delta natural, d-decalactone FCC, delta-decalactone FCC, d-decalactone natural, delta-decalactone natural, delta-decalactone R80, delta-decalactone S80, delta-decalactone synthetic, decan-5-olide, decano-1,5-lactone, d-decanolactone, (±)-5-decanolide, 5-decanolide, decanolide-1,5, 5-hydroxydecanoic acid d-lactone, 5-hydroxydecanoic acid delta-lactone, 6-pentyl tetrahydro-2H-pyran-2-one, 6-pentyl-3H-4,5,6-trihydropyran-2-one, 5-pentyl-5-pentanolide, d-pentyl-d-valerolactone, delta-pentyl-delta-valerolactone, 6-pentyl-tetrahydro-pyran-2-one, 6-pentyloxan-2-one, 6-pentyltetrahydro-2H-pyran-2-one, 2H-pyran-2-one, tetrahydro-6-pentyl-, tetrahydro-6-pentyl-2H-pyran-2-one
Physical and chemical data
| Boiling Point | 281 °C |
| Melting Point | -27.00 °C |
| Flash Point | >100 °C |
| Density | 0.95800 |
| Refractive Index | 1.45600 |
| Vapor Pressure | 0.001000 mmHg @ 20.00 C. |
| LogP | 2.469 |
| Solubility | alcohol; fixed oils; propylene glycol |
| Appearance | colorless clear liquid |
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.