Butyl undecylenate
- CAS NO.：109-42-2
- Empirical Formula: C15H28O2
- Molecular Weight: 240.38
- MDL number: MFCD00048776
- EINECS: 203-670-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:52:01
What is Butyl undecylenate?
Chemical properties
Butyl 10-undecenoate has a slightly fatty, buttery, wine-like, unpleasant odor.
Preparation
By esterification of the acid with n-butyl alcohol at the boiling point in the presence of concentrated H2SO4 or in benzene solution.
Definition
ChEBI: Butyl undecylenate is a fatty acid ester.
Safety Profile
Mildly toxic by ingestion. A slam irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
Properties of Butyl undecylenate
| Melting point: | 1.3°C (estimate) |
| Boiling point: | 249-254 °C/756 mmHg (lit.) |
| Density | 0.87 g/mL at 25 °C (lit.) |
| refractive index | n |
| FEMA | 2216 | BUTYL 10-UNDECENOATE |
| Flash point: | >230 °F |
| storage temp. | 2-8°C |
| Odor | at 100.00 %. fatty butter wine floral fruity |
| JECFA Number | 344 |
| EPA Substance Registry System | 10-Undecenoic acid, butyl ester (109-42-2) |
Safety information for Butyl undecylenate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for Butyl undecylenate
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