Benzyl Isobutyrate
Aroma Chemical Top Note CAS 103-28-6
A soft jasmine note with a fruity rose character and a soft tropical facet. Oily and natural, it adds a floral fruit lift to compositions.
Odor profile
| Note | Top Note |
| Descriptor 1 | Fruity |
| Descriptor 2 | Apple |
| Descriptor 3 | Pineapple |
| Impact Level | Medium |
| Tenacity2 | 12 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 103-28-6 |
| INCI Name | Benzyl isobutyrate |
| Category | Aroma Chemical |
| Formula | C11H14O2 |
| Mol. Weight | 178.23 |
| IUPAC Name | benzyl 2-methylpropanoate |
| InChIKey | UIKJRDSCEYGECG-UHFFFAOYSA-N |
Synonyms
benzyl 2-methyl propanoate, benzyl 2-methyl propionate, benzyl 2-methylpropanoate, benzyl 2-methylpropionate, benzyl iso butyrate, benzyl isobutanoate, benzyl isobutyrate FCC, benzyl isobutyrate natural, benzylisobutyrate, iso butyric acid benzyl ester, iso butyric acid, benzyl ester, 2-methyl propanoic acid phenyl methyl ester, phenyl methyl 2-methyl propanoate, phenylmethyl 2-methylpropanoate, phenylmethyl isobutyrate, propanoic acid, 2-methyl-, phenylmethyl ester, propionic acid
Physical and chemical data
| Boiling Point | 229.00 °C |
| Flash Point | 59.00 °C |
| Density | 1.00000 |
| Refractive Index | 1.48800 |
| Vapor Pressure | 0.051000 mmHg @ 25.00 C. (est) |
| LogP | 2.861 |
| Solubility | ethyl alcohol, 1:6 in 70% alcohol; fixed oils; paraffin oil |
| Appearance | colorless clear liquid |
Regulatory status
Restricted components
| Component | Share |
|---|---|
| Benzyl Alcohol | 0.2 % |
| Benzyl Benzoate | 0.06 % |
| Benzaldehyde | 0.06 % |
| D-Limonene | 0.01 % |
IFRA regulated substances declared for this material. For naturals — which are mixtures of many molecules — the interactive index derives the effective maximum concentration per category from them. On single molecules these shares are purity traces from the supplier specification; they are far too small to limit use and are therefore not counted.
EU allergen declaration
| Substance | Share |
|---|---|
| Benzyl alcohol | 0.2 % |
| Benzyl benzoate | 0.06 % |
| Benzaldehyde | 0.06 % |
| Limonene | 0.01 % |
Substances that must be named in the ingredient list under Annex III of Regulation (EC) 1223/2009, as amended by Regulation (EU) 2023/1545. Where a range was given, the upper bound is shown.
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.