Tonalide
Aroma Chemical Base Note CAS 1506-02-1
Clean, soft musk with a slightly sweet, powdery and faintly earthy character. A persistent, substantive fixative widely used to add a smooth musky base in florals and body care accords.
Odor profile
| Note | Base Note |
| Descriptor 1 | Musk-like |
| Descriptor 2 | Woody |
| Descriptor 3 | Powdery |
| Odor Impact1 | 20 |
| Tenacity1 | 220 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 | 1506-02-1 |
| INCI Name | 1 -(5,6,7,8-tetrahydro-3,5,5,6,8,8,-hexamethyl-2-naphthyl)ethan-1-one (ahtn) |
| Category | Aroma Chemical |
| Formula | C18H26O |
| Mol. Weight | 258.4 |
| IUPAC Name | 1-(3,5,5,6,8,8-hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone |
| InChIKey | DNRJTBAOUJJKDY-UHFFFAOYSA-N |
Synonyms
1-(5, 8-Tetrahydro-3, 8-hexamethyl-2-naphthyl)ethan-1-one (fixolid), Tonalid, Fixolid, Fixolide, Musk Tetralin, Perpetual, Tetralide, Tentarome, Carrolide, Adolid(Base, Amtolide (Base, 7-Acetyl-1,1,3,4,4,6-hexamethyltetralin, Acetyl hexamethyltetralin, Ethanone-1, 8- tetrahydro-3, 8- hexamenthyl-2-naphtenyl, 2-acetonaphthone, 5,6, 7,8-tetrahydro-3,5,5,6,8,8-hexamethyl-, acetyl hexamethyl tetralin, 6-acetyl-1,1,2,4,4,7-hexamethyl tetralin, 6-acetyl-1,1,2,4,4,7-hexamethyl-1,2,3,4-tetrahydronaphthalene, 6-acetyl-1,1,2,4,4,7-hexamethyltetralin, 7-acetyl-1,1,3,4,4,6-hexamethyl tetrahydronaphthalene, 7-acetyl-1,1,3,4,4,6-hexamethyl tetralin, 7-acetyl-1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene, 7-acetyl-1,1,3,4,4,6-hexamethyltetrahydronaphthalene, 6-acetyl-1,2,3,4-tetrahydro-1,1,2,4,4,7-hexamethyl naphthalene, 6-acetyl-1,2,3,4-tetrahydro-1,1,2,4,4,7-hexamethylnaphthalene, AHMT, ethanone, 1- (5,6,7,8-tetrahydro-3,5,5,6,8, 8-hexamethyl-2-naphthalenyl)-, 1-(5,6,7,8-tetrahydro-3,5,5,6,8,8-hexamethyl-2-naphthalenyl)-, 1-(3,5,5,6,8,8-hexamethyl-5,6,7,8-tetrahydro-2-naphthalenyl)ethanone, 1-(3,5,5,6,8,8-hexamethyl-5,6,7,8-tetrahydro-naphthalen-2-yl)-ethanone, 1-(3,5,5,6,8,8-hexamethyl-5,6,7,8-tetrahydronaphthalen-2-yl)ethanone, 1-(3,5,5,6,8,8-hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone, INCI acetyl hexamethyl tetralin, muscofix (A.C.S. International), musk tonalid, naphthalene, 7-acetyl-1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydro-
Physical and chemical data
| Boiling Point | 393 °C |
| Melting Point | 54.5 °C |
| Flash Point | >100 °C |
| Vapor Pressure | 0.000512 [mmHg] |
| LogP | 5.3 |
| Solubility | In water, 1.25 mg/L, temp not specified |
| Appearance | Large Crystals |
Regulatory status
Restricted components
| Component | Share |
|---|---|
| 5-Acetyl-1,1,2,3,3,6-Hexamethylindan | 1 % |
IFRA regulated substances declared for this material. For naturals — which are mixtures of many molecules — the interactive index derives the effective maximum concentration per category from them. On single molecules these shares are purity traces from the supplier specification; they are far too small to limit use and are therefore not counted.
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.