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HomeProduct name listFEMA 3766

FEMA 3766

Synonym(s):(E,E)-2,6-Nonadienal

FEMA 3766 Structural

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  n20/D 1.471(lit.)
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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