Geosmin
Aroma Chemical Base Note CAS 23333-91-7
A powerful earthy note of freshly turned soil and petrichor. Used in the smallest traces, it evokes humus, rain and beetroot in natural earthy accords.
Odor profile
| Note | Base Note |
| Descriptor 1 | Fruity |
| Descriptor 2 | Earthy |
| Descriptor 3 | Soft |
| Odor Impact1 | 250 |
| Tenacity2 | 68 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Identification
| CAS Number | 23333-91-7 |
| INCI Name | Octahydro-dimethyl-4alpha-naphthol |
| Category | Aroma Chemical |
| Formula | C12H22O |
| Mol. Weight | 182.30 |
| IUPAC Name | 4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol |
| InChIKey | JLPUXFOGCDVKGO-UHFFFAOYSA-N |
Synonyms
Octahydro-4,8A-Dimethyl-4A(2H)-Naphthol; 2,6-dimethyl bicyclo(6.4.4.06)decan-1-ol; 4,8a-dimethyl decalin-4a-ol; 4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol; octahydro-4,8a-dimethyl-4a(2H)-naphthalenol; octahydrodimethyl-4alpha-naphthol; 4,8a-dimethyl-decahydronaphthalen-4a-ol; 4,8a-dimethyloctahydronaphthalen-4a(2H)-ol; geosmin DPG (0.1%); 4a(2H)-naphthalenol, octahydro-4,8a-dimethyl-; (4a,4aa,8aa)-octahydro-4,8a-dimethyl-4a(2H)-naphthol
Physical and chemical data
| Boiling Point | 251.5 °C |
| Density | 1.01800 |
| Vapor Pressure | 0.003000 mmHg @ 25.00 C. (est) |
| LogP | 3.3 |
| Solubility | alcohol; water, 156.7 mg/L @ 25 C (est); air freshener |
| Appearance | colorless to pale yellow 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.