2-Undecenal
- CAS NO.：2463-77-6
- Empirical Formula: C11H20O
- Molecular Weight: 168.28
- MDL number: MFCD00014680
- EINECS: 219-564-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 01:05:21
What is 2-Undecenal ?
Chemical properties
2-Undecenal has a powerful, fresh aldehydic odor. The commercial product is a mixture of several isomers of undecylenic aldehyde. This compound exhibits fungistatic activity.
Physical properties
Colorless or very pale straw-colored oily
liquid.
Insoluble in water, soluble in alcohol and
oils.
Occurrence
Reported found among the volatile components in fish products, also formed in the oxidative decomposition of heated lard; its presence in nature has been reported in cranberry and bilberry, milk, cooked chicken, heated beef and pork, roasted filberts, roasted peanuts, pecans, coriander seed and leaf, soybean, kiwifruit and potato chips.
Preparation
2-Undecenal can be produced by condensation of Acetaldehyde with Nonanal. It can also be produced via alphu-Bromo undecanoic acid.
Definition
ChEBI: 2-undecenal is an undecenal in which the C=C bond is located at the 2-3 position. It is an undecenal, a n-alk-2-enal and a volatile organic compound.
Taste threshold values
Taste characteristics at 15 ppm: waxy, addehydic, green, with a citrus and meaty nuance.
Properties of 2-Undecenal
| Melting point: | -12°C (estimate) |
| Boiling point: | 115 °C10 mm Hg(lit.) |
| Density | 0.849 g/mL at 25 °C(lit.) |
| FEMA | 3423 | 2-UNDECENAL |
| refractive index | n |
| Flash point: | >230 °F |
| Odor | at 1.00 % in dipropylene glycol. fresh fruity orange peel |
| JECFA Number | 1366 |
| NIST Chemistry Reference | 2-Undecenal(2463-77-6) |
| EPA Substance Registry System | 2-Undecenal (2463-77-6) |
Safety information for 2-Undecenal
Computed Descriptors for 2-Undecenal
New Products
3-AMINO-3-(2-FLUORO-PHENYL)-PROPIONIC ACID Pentadecanoic acid Hendecanoic acid 2-AMINO-3-METHYLQUINOLINE HYDROCHLORIDE 3-Hydroxypropionitrile DL-3-Amino-3-(2-methoxyphenyl)propionic acid 2-Bromo-5-Iodopyridine 2,3-Diamino-5-Chloropyridine 2-Amino-3-Hydroxypyridine 2,6-Diamino Pyridine 4-Amino-2-Chloropyridine 2-Hydroxy-4-Picoline 4-(4-(Dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl)-3-(hydroxymethyl)benzonitrile 2-Hydroxy-5-methoxybenzoic acid 2-Cyanopyrimidine Xanthene-9-carboxylic acid 4,4-Diethoxybutanenitrile Methyl 4-amino-2,3-difluoro-5-nitrobenzoate 5-fluoro-1,3-benzodioxole 5-Phenyl-[1,3,4]-thiadiazol-2-amine 2-Chloro-6-nitro benzothiazole 4-Chloro-2-methyl quinoline 2-Amino-4-phenyl-thiazole 2-(Chloromethyl) quinazolin-4(3H)-oneRelated products of tetrahydrofuran
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