Methyl Amyl Ketone
Aroma Chemical Top Note CAS 110-43-0
Fresh, fruity and herbal with a green pear nuance and a soft, slightly cheesy and spicy facet. Used in traces, it lends a natural lift to fruity, lavender and spicy notes.
Odor profile
| Note | Top Note |
| Descriptor 1 | Herbal |
| Descriptor 2 | Fruity |
| Descriptor 3 | Pear |
| Odor Impact1 | 400 |
| Tenacity1 | 1 h |
| Tenacity2 | 4 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 | 110-43-0 |
| INCI Name | Methyl amyl ketone |
| Category | Aroma Chemical |
| Formula | C7H14O |
| Mol. Weight | 114.19 |
| IUPAC Name | heptan-2-one |
| InChIKey | CATSNJVOTSVZJV-UHFFFAOYSA-N |
Synonyms
2-Heptanone, Amyl Methyl Ketone, ketone C-7, Heptanone, N-amyl methyl ketone, butyl acetone, eastapure MAK, heptan-2-one, heptane-2-one, 2-heptanone (methyl amyl ketone) natural, 2-heptanone natural, heptanone-2, 2-heptanone, natural, methyl pentyl, MAK, methyl (N-amyl) ketone, methyl amyl ketone (2-heptanone), methyl amyl ketone FCC, methyl amyl ketone natural, methyl N-amyl ketone, methyl N-pentyl ketone, methyl pentyl ketone, methyl-amyl-cetone, methyl-N-amylketone, pentyl methyl ketone, N-pentyl methyl ketone, ketone
Physical and chemical data
| Boiling Point | 148.9 °C |
| Melting Point | -35.0 °C |
| Flash Point | 38.9 °C |
| Density | 0.82 |
| Refractive Index | 1.41156 |
| Vapor Pressure | 3 mmHg (NIOSH, 2024) |
| LogP | 2 |
| Solubility | 0.43% (by wt) in water |
| Appearance | N-amyl methyl ketone appears as a clear colorless liquid. Flash point 126 °F. Less dense than water and only slightly soluble in water. Hence floats on water. Vapors heavier than air. Density 6.8 lb / |
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.