Butyl Butyrate
Aroma Chemical Top Note CAS 109-21-7
A juicy fruity note with banana and pineapple facets and a ripe tropical sweetness. Fresh and diffusive, it lifts fruity top notes with apple and strawberry nuances.
Odor profile
| Note | Top Note |
| Descriptor 1 | Fruity |
| Descriptor 2 | Raspberry |
| Descriptor 3 | Blueberry |
| Odor Impact1 | 140 |
| Impact Level | Medium |
| Tenacity1 | 1.08 h |
| Tenacity2 | 8 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 | 109-21-7 |
| INCI Name | Butyl butyrate |
| Category | Aroma Chemical |
| Formula | C8H16O2 |
| Mol. Weight | 144.21 |
| IUPAC Name | butyl butanoate |
| InChIKey | XUPYJHCZDLZNFP-UHFFFAOYSA-N |
Synonyms
Butanoic acid, butyl ester, Butyl butanoate, BOEH DesC, butanoic acid butyl ester, N-butyl butanoate, 1-butyl butyrate, N-butyl butyrate, nat. butyl butyrate, butyl butyrate (natural), butyl butyrate FCC, N-butyl butyrate FCC, butyl butyrate natural, N-butyl butyrate natural, butyl butyrate normal FCC, butyl butyrate normal natural, N-butyl N-butanoate, N-butyl N-butyrate, butyric acid butyl ester, butyric acid N-butyl ester
Physical and chemical data
| Boiling Point | 166.7 °C |
| Melting Point | -91.7 °C |
| Flash Point | 53.3 °C |
| Density | 0.872 |
| Refractive Index | 1.405 |
| Vapor Pressure | 10.34 mmHg (USCG, 1999) |
| LogP | 2.2 |
| Solubility | miscible with alcohol, ether, most vegetable oils; slightly soluble in propylene glycol, water |
| Appearance | Butyl butyrate appears as a colorless liquid. Insoluble in water. A marine pollutant. Poses a threat to the aquatic environment. Immediate steps should be taken to prevent spread to the environment. M |
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.