Styralyl Propionate
Aroma Chemical Top Note CAS 120-45-6
A fresh green floral note with a leafy narcotic character and a soft fruity sweetness. Natural and diffusive, it adds a green gardenia lift to floral accords.
Odor profile
| Note | Top Note |
| Descriptor 1 | Fruity |
| Descriptor 2 | Floral |
| Descriptor 3 | Green |
| Odor Impact1 | 300 |
| Impact Level | Medium |
| Tenacity1 | 10 h |
| Tenacity2 | 6 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 | 120-45-6 |
| INCI Name | Styralyl propionate |
| Category | Aroma Chemical |
| Formula | C11H14O2 |
| Mol. Weight | 178.23 |
| IUPAC Name | 1-phenylethyl propanoate |
| InChIKey | WCIQNYOXLZQQMU-UHFFFAOYSA-N |
Synonyms
Alpha-methylbenzyl propionate, benzenemethanol, a-methyl-, propanoate, benzyl alcohol, a-methyl-, alpha-methyl benzene methanol propanoate, alpha-methyl benzyl alcohol propionate, alpha-methyl benzyl propanoate, alpha-methyl benzyl propionate, methyl phenyl carbinyl propionate, a-methylbenzenemethanol propanoate, a-methylbenzyl alcohol, a-methylbenzyl propanoate, alpha-methylbenzyl propanoate, a-methylbenzyl propionate, methylphenylcarbinyl propionate, 1-phenethyl propionate, 1-phenyl ethyl propionate, phenyl methyl carbinyl propionate, 1-phenyl-1-ethyl propionate, 1-phenylethyl propanoate, 1-phenylethyl propionate, a-phenylethyl propionate, phenylmethylcarbinyl propionate, propionic acid alpha-methyl benzyl ester, propionic acid, 1-phenylethyl ester, propionic acid, a-methylbenzyl ester, styrallyl propionate, styrolyl propionate, propionate, propionate
Physical and chemical data
| Boiling Point | 91.5 °C @ 5 mmHg |
| Flash Point | 94.44 °C |
| Density | 1.002 |
| Refractive Index | 1.487 |
| Vapor Pressure | 0.069000 mmHg @ 25.00 C. (est) |
| LogP | 2.5 |
| Solubility | insoluble in water; soluble in organic solvents, oils |
| Appearance | colourless liquid with a fruity, floral, sweet, green odour |
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.