FEMA 3766
Synonym(s):(E,E)-2,6-Nonadienal
- CAS NO.:17587-33-6
- Empirical Formula: C9H14O
- Molecular Weight: 138.21
- EINECS: 241-557-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-06-26 14:07:13
What is FEMA 3766?
Description
2-trans-6-trans.Nonadienahas a tallowy odor.
Chemical properties
clear colorless to pale yellowish liquid
Chemical properties
2-trans, 6-trans-Nonadienal has a tallowy odor. This compound is also reported as having a powerful, green, vegetable odor.
Occurrence
Reported found in soybean oil, beef tallow, cold-stored butter, mango, lingonberry, cucumber, corn mint oil, lean fish, beer, trassi, buckwheat, shrimp and rooibus tea (Aspalathus linearis).
The Uses of FEMA 3766
(2E,6E)-2,6-Nonadienal is a useful building block for organic synthesis.
What are the applications of Application
2-trans, 6-trans-Nonadienal would particularly be used in imitation Cucumber and as a trace ingredient in many green and fruity flavour types.
Production Methods
Most methods start with 3-Hexenol. 1) via Hexenyl iodide and its Grignard compound, with Acrolein to the carbinol. By treatment with Phosphorous tribromide and saponification is obtained the alcohol Nonadienol which can be oxidized to 2-trans, 6-trans-Nonadienal by Chromic acid oxidation. 2) from Dipropargyl via Octadi-yne to Nonadiynal-diethylacetal, followed by selective hydrogenation to Nonadienal diethylacetal which yields 2-trans, 6-trans-Nonadienal by acid hydrolysis.
Aroma threshold values
Detection: 0.09 ppb
Taste threshold values
Taste characteristics at 1 ppm: fresh, green cucumber skin and watermelon with a fatty nuance
Properties of FEMA 3766
Boiling point: | 57 °C0.6 mm Hg(lit.) |
Density | 0.875 g/mL at 25 °C(lit.) |
refractive index | n |
FEMA | 3766 | 2-TRANS-6-TRANS-NONADIENAL |
Flash point: | 189 °F |
storage temp. | 0-6°C |
solubility | Practically insoluble in water, soluble in alcohol, Propylene glycol and oils. |
form | Almost colourless or very pale yellowish oil. |
Odor | at 1.00 % in dipropylene glycol. fresh citrus green cucumber melon |
JECFA Number | 1187 |
EPA Substance Registry System | 2,6-Nonadienal, (2E,6E)- (17587-33-6) |
Safety information for FEMA 3766
Computed Descriptors for FEMA 3766
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