Skatole
Aroma Chemical Base Note CAS 83-34-1
A very strong animalic note with a fecal civet character and an indolic facet. Used in the smallest traces, it adds carnal depth to white florals and animalic accords.
Odor profile
| Note | Base Note |
| Descriptor 1 | Animal-like |
| Descriptor 2 | Indolic |
| Descriptor 3 | Floral |
| Odor Impact1 | 2000 |
| Tenacity1 | 85 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 | 83-34-1 |
| INCI Name | Skatole |
| Category | Aroma Chemical |
| Formula | C9H9N |
| Mol. Weight | 131.17 |
| IUPAC Name | 3-methyl-1H-indole |
| InChIKey | ZFRKQXVRDFCRJG-UHFFFAOYSA-N |
Synonyms
3-Methylindole, Indole, 3-methyl, 3-methyl indole, beta-methyl indole, 3-methyl-1H-indole, 3-methyl-4,5-benzopyrrole, beta-methylindole, scatol (Indukern), skatole 1% in ETOH
Physical and chemical data
| Boiling Point | 265.5 °C @ 755 mmHg |
| Melting Point | 95.0 °C |
| Flash Point | 131.67 °C |
| Vapor Pressure | 0.0055 [mmHg] |
| LogP | 2.6 |
| Solubility | SOL IN HOT WATER, ALC, BENZENE, CHLOROFORM, ETHER |
| Appearance | White to brownish solid with a fecal odor; [Merck Index] Odor becomes pleasant and sweet at very low concentrations; [HSDB] White crystalline flakes with a stench; [MSDSonline] |
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.