(2E,4E)-2,4-Octadienal
- CAS NO.：30361-28-5
- Empirical Formula: C8H12O
- Molecular Weight: 124.18
- MDL number: MFCD00014676
- EINECS: 250-147-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 06:00:38
What is (2E,4E)-2,4-Octadienal?
Description
trans,trans-2,-4-Octadienal has a fatty, green, sour odor.
Chemical properties
trans, trans-2,4-Octadienal has a fatty, green, sour odor.
Occurrence
Reported found in roasted beef, lamb, mutton, wheat bread, cheese, cocoa beans, chocolate liquor, fresh salted salmon, sturgeon caviar, salmon roe, fish, salmon oil, pickled ham, grapes, oxidized milk, potato chips, peanuts, rice, roasted sesame seeds, prickly pear and black tea.
Definition
ChEBI: (E,E)-2,4-Octadienal is a fatty aldehyde.
Taste threshold values
Taste characteristics at 10 ppm: green, fruity, melon, citrus, tallow and fatty nuances.
Synthesis Reference(s)
Chemistry Letters, 8, p. 713, 1979
The Journal of Organic Chemistry, 23, p. 1580, 1958 DOI: 10.1021/jo01104a625
Properties of (2E,4E)-2,4-Octadienal
| Boiling point: | 88 °C10 mm Hg(lit.) |
| Density | 0.875 g/mL at 25 °C(lit.) |
| refractive index | n |
| FEMA | 3721 | TRANS,TRANS-2,4-OCTADIENAL |
| Flash point: | 174 °F |
| storage temp. | Inert atmosphere,Store in freezer, under -20°C |
| solubility | Chloroform (Soluble), Methanol (Slightly) |
| form | Oil |
| color | Pale Yellow |
| Odor | at 10.00 % in dipropylene glycol. green fatty reminiscent of pear melon peely |
| JECFA Number | 1181 |
| Stability: | Light Sensitive, Temperature Sensitive |
| NIST Chemistry Reference | 2,4-Octadienal, (e,e)-(30361-28-5) |
| EPA Substance Registry System | 2,4-Octadienal, (2E,4E)- (30361-28-5) |
Safety information for (2E,4E)-2,4-Octadienal
Computed Descriptors for (2E,4E)-2,4-Octadienal
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