2-Acetylthiazole
Aroma Chemical Heart Note CAS 24295-03-2
A powerful roasted nutty note dominated by popcorn, peanut and hazelnut. It carries warm baked bread and cereal nuances and is used in traces for toasted savoury effects.
Odor profile
| Note | Heart Note |
| Descriptor 1 | Food-like |
| Descriptor 2 | Popcorn |
| Descriptor 3 | Roasted |
| Odor Impact1 | 2245 |
| Tenacity1 | 16 h |
| Tenacity2 | 16 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 | 24295-03-2 |
| INCI Name | Methyl thiazolyl ketone |
| Category | Aroma Chemical |
| Formula | C5H5NOS |
| Mol. Weight | 127.17 |
| IUPAC Name | 1-(1,3-thiazol-2-yl)ethanone |
| InChIKey | MOMFXATYAINJML-UHFFFAOYSA-N |
Synonyms
acetyl thiazole, methyl thiazolyl ketone, methyl 2-thiazolyl ketone, methyl 5-thiazolyl ketone, popcorn thiazole, thiazol-2-yl) ethan-1-one, 1-(1,3- thiazol-2-yl)ethanone, 1-(2- thiazolyl) ethanone, thiazolyl methyl ketone, 2 Acetyl thiazole, 2-acetyl thiazole, 5-acetyl thiazole, 2-acetyl-1,3-thiazole, 2-acetyl-2-thiazole, 2-acetyl-5-(4-fluorophenyl)thiophene, 2-acetylthiazol, 2 acetylthiazole, ethanone, 1-(2-thiazolyl)-, 1-thiazol-2-yl-ethanone, 1-( thiazol-2-yl) ethan-1-one, 1-(1,3-thiazol-2-yl)ethan-1-one, 1-( thiazol-2-yl)ethanone, 1-(1,3-thiazol-2-yl)ethanone, 2-thiazolyl methyl ketone, 1-(2-thiazolyl) ethanone, 1-(2-thiazolyl)-ethanone
Physical and chemical data
| Boiling Point | 213.5 °C |
| Melting Point | 65.0 °C |
| Flash Point | 78.33 °C |
| Density | 1.225 |
| Refractive Index | 1.543 |
| Vapor Pressure | 0.173000 mmHg @ 25.00 C. (est) |
| LogP | 1 |
| Solubility | Insoluble in water; Soluble in fats, oils, most organic solvents |
| Appearance | Solid |
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.