Phenoxyethyl Isobutyrate
Aroma Chemical Heart Note CAS 103-60-6
Soft, sweet floral with a transparent rose and chamomile character and a juicy red and tropical fruit facet. Smooth and versatile, it rounds fruity, rosy and tea accords.
Odor profile
| Note | Heart Note |
| Descriptor 1 | Floral |
| Descriptor 2 | Fruity |
| Descriptor 3 | Rose |
| Odor Impact1 | 50 |
| Impact Level | Medium |
| Tenacity1 | 30 h |
| Tenacity2 | 184 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 | 103-60-6 |
| INCI Name | Phenoxyethyl isobutyrate |
| Category | Aroma Chemical |
| Formula | C12H16O3 |
| Mol. Weight | 208.25 |
| IUPAC Name | 2-phenoxyethyl 2-methylpropanoate |
| InChIKey | MJTPMXWJHPOWGH-UHFFFAOYSA-N |
Synonyms
2-Phenoxyethyl Isobutyrate, 2-Phenoxyethyl 2-methylpropanoate, Phenirat, iso butyric acid 2-phenoxyethyl ester, iso butyric acid, 2-phenoxyethyl ester, ethylene glycol monophenyl ether isobutyrate, ethylene glycol monophenylether isobutyrate, 2-methyl propanoic acid 2-phenoxyethyl ester, methylphenylacetaldehyde, p-, phenirat (Symrise), phenirat FCC, phenoxy ethyl iso butyrate, phenoxy ethyl isobutyrate, 2-( phenoxy)ethyl 2-methylpropanoate, 2-phenoxyethyl 2-methyl propanoate, phenoxyethyl iso butyrate, phenyl cellosolve isobutyrate, propanoic acid, 2-methyl-, 2-phenoxyethyl ester, propionic acid, 2-methyl-, 2-phenoxyethyl ester
Physical and chemical data
| Boiling Point | 265 °C |
| Flash Point | >94 °C |
| Density | 1.044 |
| Refractive Index | 1.491 |
| Vapor Pressure | 0.006000 mmHg @ 25.00 C. (est) |
| LogP | 2.8 |
| Solubility | Insoluble in water; miscible in alcohols, chloroform, ether; Soluble in oils |
| Appearance | CBI; 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.