(E,E)-2,4-Hexadienal
Synonym(s):(E,E)-2,4-Hexadienal;Sorbaldehyde;Sorbic aldehyde
- CAS NO.:142-83-6
- Empirical Formula: C6H8O
- Molecular Weight: 96.13
- MDL number: MFCD00007004
- EINECS: 205-564-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-07-19 18:29:52
What is (E,E)-2,4-Hexadienal?
Description
trans, frans-2,4-Hexadienal has a fresh, green, floral citrus odor. May be synthesized by slowly heating croton-aldehyde with acetaldehyde in the presence of pyridine at 85 - 90°C.
Chemical properties
liquid
Chemical properties
trans, trans-2,4-Hexadienal has a sweet, green aroma; in dilution, a pleasant citrusy green.
Occurrence
Reported found in olive, roasted peanuts, tomato, caviar, fish, auto-oxidized salmon oil, tea, apricot, strawberry, wheaten bread, Russian cheeses, cooked chicken and beef, boiled mutton, hop oil, raw and roasted peanuts, soybean, olive, rice, buckwheat, malt, kiwifruit and scallops.
The Uses of (E,E)-2,4-Hexadienal
2,4-Hexadienal, is used in the synthesis of chiral cycloadducts. 2,4-Hexadienal is used as a flavouring agent, as a chemical intermediate in various organic synthetic reactions and as a raw material in the manufacture of sorbic acid. It is also used as in the manufacture of polymethine dyes, as a pharmaceutical intermediate in the manufacture of mitomycins and antihypercholesteraemics, as an inhibitor of corrosion for steel used in oil field operations, as a monomer in reactions with silane comonomers for the manufacture of polyalkenyloxysilane polymer and as a fumigant against larvae of the Caribbean fruit fly.
The Uses of (E,E)-2,4-Hexadienal
trans,trans-2,4-Hexadienal (sorbic aldehyde) was used in the synthesis of chiral cycloadducts.
What are the applications of Application
trans,trans-2,4-Hexadienal is used in the synthesis of chiral cycloadducts
Preparation
Can be obtained by slowly heating crotonaldehyde with acetaldehyde in the presence of pyridine at 85 to 90°C.
Definition
ChEBI: (E,E)-2,4-hexadienal is a hexadienal that is hexanal with trans double bonds at positions 2 and 4. It is found in tomatoes, kiwi fruit, mangoes, potato chips, herbs and spices. It has a role as a flavouring agent and a plant metabolite. It is a polyunsaturated fatty aldehyde, a hexadienal and a volatile organic compound.
Aroma threshold values
Detection: 60 to 476 ppb
Taste threshold values
Taste characteristics at 25 ppm: sweet, green, waxy, aldehydic, with fresh melon nuances.
General Description
trans,trans-2,4-Hexadienal is a volatile is a flavor compound that is reported to occur in different types of tea.
Properties of (E,E)-2,4-Hexadienal
Melting point: | -16.5°C |
Boiling point: | 69 °C/20 mmHg (lit.) |
Density | 0.895 g/mL at 20 °C
0.871 g/mL at 25 °C (lit.) |
vapor density | >1 (vs air) |
refractive index | n |
FEMA | 3429 | TRANS,TRANS-2,4-HEXADIENAL |
Flash point: | 154 °F |
storage temp. | 2-8°C |
solubility | Almost insoluble in water, soluble in alcohol and oils. |
form | liquid |
color | Colorless |
Specific Gravity | 0.871 |
Odor | at 10.00 % in dipropylene glycol. sweet green spicy floral citrus |
Water Solubility | It is Insoluble in water, but soluble in ethanol. |
Sensitive | Air Sensitive |
JECFA Number | 1175 |
BRN | 1698401 |
Stability: | Stable. Combustible. Incompatible with strong reducing agents, strong bases, strong oxidizing agents. |
CAS DataBase Reference | 142-83-6(CAS DataBase Reference) |
IARC | 2B (Vol. 101) 2013 |
NIST Chemistry Reference | 2,4-Hexadienal, (E,E)-(142-83-6) |
EPA Substance Registry System | 2,4-Hexadienal, (2E,4E)- (142-83-6) |
Safety information for (E,E)-2,4-Hexadienal
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06 |
GHS Hazard Statements |
H314:Skin corrosion/irritation H317:Sensitisation, Skin |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for (E,E)-2,4-Hexadienal
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