5-Methyl-2-Hepten-4-One
Aroma Chemical Top Note CAS 81925-81-7
A nutty note with a hazelnut and nut skin character and a soft sweet facet. Natural and ketonic, it adds a roasted nutty depth to compositions.
Odor profile
| Note | Top Note |
| Descriptor 1 | Food-like |
| Descriptor 2 | Nutty |
| Descriptor 3 | Roasted |
| Tenacity2 | 2 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 81925-81-7 |
| INCI Name | 5-methyl-2-hepten-4-one |
| Category | Aroma Chemical |
| Formula | C8H14O |
| Mol. Weight | 126.20 |
| IUPAC Name | (E)-5-methylhept-2-en-4-one |
| InChIKey | ARJWAURHQDJJAC-GQCTYLIASA-N |
Synonyms
filbert heptenone, filbertone (Symrise), filbertone 1% in TEC (Symrise), filbertone G (Symrise), hazelnut ketone, hazelnut ketone natural, hazeltone, hept-2-en-4-one, 5-methyl-, 2-hepten-4-one, 5-methyl-, 5 methyl 2 hepten 4 one (filbertone), 5-methyl hept-2-en-4-one, 5-methyl-2-hept-4-one, 5-methyl-2-hepten-4-one (1% in triacetin) natural, 5-methyl-2-hepten-4-one in 10% in ethanol, 5-methyl-2-hepten-4-one natural, 5-methyl-2-hepten-4-one natural 1% in ethanol, 5-methyl-2-hepten-4-one natural 1% in triacetin, 5-methyl-2-hepten-4-one natural 10% in ethanol, 5-methyl-2-hepten-4-one synthetic, 5-methylhept-2-en-4-one
Physical and chemical data
| Boiling Point | 170.00 °C |
| Flash Point | 52.22 °C |
| Density | 0.84500 |
| Refractive Index | 1.44000 |
| Vapor Pressure | 1.247000 mmHg @ 25.00 C. (est) |
| LogP | 2.023 |
| Solubility | alcohol; water, 1208 mg/L @ 25 C (est); For experimental / research use only. |
| Appearance | colorless to 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.